Search

Search Results

• 31. [Image] Improving salmon passage: draft, the Lower Snake River juvenile salmon migration feasibility report/environmental impact statement

  	The purpose of this summary report is to provide an overview of the findings developed for the Lower Snake River Juvenile Salmon Migration Feasibility Study. For more detailed information, the reader should ...
  	Citation × Citation Citation Abstract Copy Title: Improving salmon passage: draft, the Lower Snake River juvenile salmon migration feasibility report/environmental impact statement Year: 1999, 2004 The purpose of this summary report is to provide an overview of the findings developed for the Lower Snake River Juvenile Salmon Migration Feasibility Study. For more detailed information, the reader should refer to the Draft Feasibility Report/Environmental Impact Statement and attached appendices. The genesis of this study is the National Marine Fisheries Service's 1995 Biological Opinion for the Reinitiation of Consultation on 1994-1998 Operation of the Federal Columbia River Power System and Juvenile Transportation Program in 1995 and Future Years (95 Biological Opinion). While the focus of this study is the relationship between the four dams on the lower Snake River and their effects on juvenile fish traveling toward the ocean, the implications of the study are broader. The Draft Feasibility Report/Environmental Impact Statement includes the best available information on the biological effectiveness, engineering, economic effects, and other environmental effects associated with the four specific alternatives. It does not, however, include a recommendation or identify a preferred alternative. This will give the public and other agencies an opportunity to review and understand this information and provide input before a preferred alternative is selected. At the same time, this will allow the region to consider the Habitat, Hatcheries, Harvest, and Hydropower Working Paper on salmon recovery by the Federal Caucus. Information from this process will be fully examined to determine how it may influence decisions on actions for the lower Snake River. Title: Improving salmon passage: draft, the Lower Snake River juvenile salmon migration feasibility report/environmental impact statement Year: 1999, 2004 The purpose of this summary report is to provide an overview of the findings developed for the Lower Snake River Juvenile Salmon Migration Feasibility Study. For more detailed information, the reader should refer to the Draft Feasibility Report/Environmental Impact Statement and attached appendices. The genesis of this study is the National Marine Fisheries Service's 1995 Biological Opinion for the Reinitiation of Consultation on 1994-1998 Operation of the Federal Columbia River Power System and Juvenile Transportation Program in 1995 and Future Years (95 Biological Opinion). While the focus of this study is the relationship between the four dams on the lower Snake River and their effects on juvenile fish traveling toward the ocean, the implications of the study are broader. The Draft Feasibility Report/Environmental Impact Statement includes the best available information on the biological effectiveness, engineering, economic effects, and other environmental effects associated with the four specific alternatives. It does not, however, include a recommendation or identify a preferred alternative. This will give the public and other agencies an opportunity to review and understand this information and provide input before a preferred alternative is selected. At the same time, this will allow the region to consider the Habitat, Hatcheries, Harvest, and Hydropower Working Paper on salmon recovery by the Federal Caucus. Information from this process will be fully examined to determine how it may influence decisions on actions for the lower Snake River. Close

• 32. [Image] The Third Klamath Basin Watershed Restoration and Research Conference

  	Cover title; "March 1999."
  	Citation × Citation Citation Abstract Copy Title: The Third Klamath Basin Watershed Restoration and Research Conference Year: 1999, 2004 Cover title; "March 1999." Title: The Third Klamath Basin Watershed Restoration and Research Conference Year: 1999, 2004 Cover title; "March 1999." Close

• 33. [Image] Seeking refuge: making space for migratory waterfowl and wetlands along the Pacific Flyway

  	Abstract "Seeking Refuge" examines the history of migratory waterfowl management along the Pacific Flyway, the westernmost of four main migration routes in North America. Drawing on approaches from historical ...
  	Citation × Citation Citation Abstract Copy Title: Seeking refuge: making space for migratory waterfowl and wetlands along the Pacific Flyway Author: Wilson, Robert Michael Year: 2003, 2005, 2004 Abstract "Seeking Refuge" examines the history of migratory waterfowl management along the Pacific Flyway, the westernmost of four main migration routes in North America. Drawing on approaches from historical geography and environmental history, this study shows how wildlife officials developed migratory bird refuges in Oregon and California, where over 60 percent of Pacific Flyway waterfowl winter. During the early-twentieth century, reclamation and river diking eliminated most of the wetlands in the birds' wintering range. Bird enthusiasts such as bird watchers and duck hunters successfully lobbied for the creation of wildlife refuges in a few areas along the flyway. These early refuges failed to protect waterfowl habitat and they were severely degraded by reclamation. In the 1930s and 1940s, the U.S. Fish and Wildlife Service (FWS) and its predecessor, the Bureau of Biological Survey, undertook an ambitious program to resurrect these sanctuaries and to create new ones. Many farmers opposed these refuges out of fear that waterfowl would damage crops. To respond to these concerns and to ensure an adequate food supply for the birds, the FWS raised rice, barley, and other grains. The agency adopted many of the technologies of modern, industrial agriculture including synthetic herbicides and insecticides such as 2, 4-D and DDT. By the 1960s, the refuges had become largely mirrors of the surrounding irrigated farmlands, the main difference being that the FWS raised grain for waterfowl rather than for market. Refuges could not escape the agricultural settings in which they were embedded. As units within the irrigated countryside, Pacific Flyway refuges were often at the mercy of nearby farmers and federal reclamation agencies. Poor water quality and insufficient supplies of water often hampered FWS efforts to manage refuges. In the late-twentieth century, reduced water supply due to diversions to California municipalities and to sustain endangered fish species affected the amount of water reaching refuges. This dissertation has other goals. First, it critiques the anthropocentrism of most historical geography by focusing on how political, cultural, and ecological factors affected wildlife. Second, it contributes to the literature on the state's role in environmental protection by investigating the overlapping, and often contradictory, spaces within which wildlife managers implemented environmental regulations. Title: Seeking refuge: making space for migratory waterfowl and wetlands along the Pacific Flyway Author: Wilson, Robert Michael Year: 2003, 2005, 2004 Abstract "Seeking Refuge" examines the history of migratory waterfowl management along the Pacific Flyway, the westernmost of four main migration routes in North America. Drawing on approaches from historical geography and environmental history, this study shows how wildlife officials developed migratory bird refuges in Oregon and California, where over 60 percent of Pacific Flyway waterfowl winter. During the early-twentieth century, reclamation and river diking eliminated most of the wetlands in the birds' wintering range. Bird enthusiasts such as bird watchers and duck hunters successfully lobbied for the creation of wildlife refuges in a few areas along the flyway. These early refuges failed to protect waterfowl habitat and they were severely degraded by reclamation. In the 1930s and 1940s, the U.S. Fish and Wildlife Service (FWS) and its predecessor, the Bureau of Biological Survey, undertook an ambitious program to resurrect these sanctuaries and to create new ones. Many farmers opposed these refuges out of fear that waterfowl would damage crops. To respond to these concerns and to ensure an adequate food supply for the birds, the FWS raised rice, barley, and other grains. The agency adopted many of the technologies of modern, industrial agriculture including synthetic herbicides and insecticides such as 2, 4-D and DDT. By the 1960s, the refuges had become largely mirrors of the surrounding irrigated farmlands, the main difference being that the FWS raised grain for waterfowl rather than for market. Refuges could not escape the agricultural settings in which they were embedded. As units within the irrigated countryside, Pacific Flyway refuges were often at the mercy of nearby farmers and federal reclamation agencies. Poor water quality and insufficient supplies of water often hampered FWS efforts to manage refuges. In the late-twentieth century, reduced water supply due to diversions to California municipalities and to sustain endangered fish species affected the amount of water reaching refuges. This dissertation has other goals. First, it critiques the anthropocentrism of most historical geography by focusing on how political, cultural, and ecological factors affected wildlife. Second, it contributes to the literature on the state's role in environmental protection by investigating the overlapping, and often contradictory, spaces within which wildlife managers implemented environmental regulations. Close

• 34. [Image] A strategy for achieving healthy watersheds in Oregon

  	"January 2001."
  	Citation × Citation Citation Abstract Copy Title: A strategy for achieving healthy watersheds in Oregon Author: Oregon Watershed Enhancement Board Year: 2001, 2004 "January 2001." Title: A strategy for achieving healthy watersheds in Oregon Author: Oregon Watershed Enhancement Board Year: 2001, 2004 "January 2001." Close

• 35. [Image] The Endangered Species Act and its impact on agricultural producers: hearing before the Subcommittee on Conservation, Credit, Rural Development, and Research of the Committee on Agriculture, House of representatives, One Hundred Eighth Congress, second session, July 26, 2004, Greely, CO.

  	CONTENTS Lucas, Hon. Frank, a Representative in Congress from the State of Oklahoma, opening statement .................................................................................... 1 Musgrave, ...
  	Citation × Citation Citation Abstract Copy Title: The Endangered Species Act and its impact on agricultural producers: hearing before the Subcommittee on Conservation, Credit, Rural Development, and Research of the Committee on Agriculture, House of representatives, One Hundred Eighth Congress, second session, July 26, 2004, Greely, CO. Author: United States. Congress. House. Committee on Agriculture. Subcommittee on Conservation, Credit, Rural Development, and Research. Year: 2004, 2005 CONTENTS Lucas, Hon. Frank, a Representative in Congress from the State of Oklahoma, opening statement .................................................................................... 1 Musgrave, Hon. Marilyn N., a Representative in Congress from the State of Colorado, opening statement........................................................................... 2 Witnesses Foutz, Alan, president, Colorado Farm Bureau, Centennial, CO ........................ 10 Prepared statement .......................................................................................... 38 George, Russell, executive director, Colorado Department of Natural Resources, Denver, CO............................................................................................. 4 Prepared statement .......................................................................................... 29 Palmer, William, executive director, Rocky Mountain Bird Observatory, Brighton, CO ........................................................................................................ 16 Prepared statement.......................................................................................... 60 Sims, James T., executive director, Western Business Roundtable, Golden, CO.......................................................................................................................... 13 Prepared statement .......................................................................................... 43 Stetson, Jean, co-chairman, Endangered Species Committee, Colorado Cattlemen, Craig, CO..................................................................................................... 7 Prepared statement .......................................................................................... 36 Submitted Material Weege, Merle, secretary, Ginseng Board of Wisconsin, statement...................... 65 Title: The Endangered Species Act and its impact on agricultural producers: hearing before the Subcommittee on Conservation, Credit, Rural Development, and Research of the Committee on Agriculture, House of representatives, One Hundred Eighth Congress, second session, July 26, 2004, Greely, CO. Author: United States. Congress. House. Committee on Agriculture. Subcommittee on Conservation, Credit, Rural Development, and Research. Year: 2004, 2005 CONTENTS Lucas, Hon. Frank, a Representative in Congress from the State of Oklahoma, opening statement .................................................................................... 1 Musgrave, Hon. Marilyn N., a Representative in Congress from the State of Colorado, opening statement........................................................................... 2 Witnesses Foutz, Alan, president, Colorado Farm Bureau, Centennial, CO ........................ 10 Prepared statement .......................................................................................... 38 George, Russell, executive director, Colorado Department of Natural Resources, Denver, CO............................................................................................. 4 Prepared statement .......................................................................................... 29 Palmer, William, executive director, Rocky Mountain Bird Observatory, Brighton, CO ........................................................................................................ 16 Prepared statement.......................................................................................... 60 Sims, James T., executive director, Western Business Roundtable, Golden, CO.......................................................................................................................... 13 Prepared statement .......................................................................................... 43 Stetson, Jean, co-chairman, Endangered Species Committee, Colorado Cattlemen, Craig, CO..................................................................................................... 7 Prepared statement .......................................................................................... 36 Submitted Material Weege, Merle, secretary, Ginseng Board of Wisconsin, statement...................... 65 Close

• 36. [Image] Research information needs on terrestrial vertebrate species of the interior Columbia River basin and northern portions of the Klamath and Great basins: research, development, and application database

  	"September 1997"; Includes bibliographical references (p. 24)
  	Citation × Citation Citation Abstract Copy Title: Research information needs on terrestrial vertebrate species of the interior Columbia River basin and northern portions of the Klamath and Great basins: research, development, and application database Author: Marcot, Bruce G. Year: 1997, 2005, 2004 "September 1997"; Includes bibliographical references (p. 24) Title: Research information needs on terrestrial vertebrate species of the interior Columbia River basin and northern portions of the Klamath and Great basins: research, development, and application database Author: Marcot, Bruce G. Year: 1997, 2005, 2004 "September 1997"; Includes bibliographical references (p. 24) Close

• 37. [Image] Summary of the analysis of the management situation: Klamath Falls Resource Area resource management plan

  	"December 1990"
  	Citation × Citation Citation Abstract Copy Title: Summary of the analysis of the management situation: Klamath Falls Resource Area resource management plan Author: United States. Bureau of Land Management. Klamath Falls Resource Area Office. Year: 1990, 2005, 2004 "December 1990" Title: Summary of the analysis of the management situation: Klamath Falls Resource Area resource management plan Author: United States. Bureau of Land Management. Klamath Falls Resource Area Office. Year: 1990, 2005, 2004 "December 1990" Close

• 38. [Image] Programmatic environmental assessment for Klamath Basin Ecosystem Restoration Office Projects, 2000-2010

  	Programmatic Environmental Assessment Summary This Environmental Assessment (EA) provides compliance with the National Environmental Policy Act (NEPA) for restoration actions undertaken by the US Fish ...
  	Citation × Citation Citation Abstract Copy Title: Programmatic environmental assessment for Klamath Basin Ecosystem Restoration Office Projects, 2000-2010 Author: U.S. Fish and Wildlife Service. Klamath Basin Ecosystem Restoration Office. Year: 2000, 2005, 2004 Programmatic Environmental Assessment Summary This Environmental Assessment (EA) provides compliance with the National Environmental Policy Act (NEPA) for restoration actions undertaken by the US Fish & Wildlife Service's Klamath Basin Ecosystem Restoration Office (ERO) in Klamath Falls, Oregon. These restoration activities are needed due to the large-scale loss of wetland and riparian habitat and degraded water quality. The purpose of these restoration efforts is the improvement of conditions of the watershed with specific regard to habitat and water quality, resulting in, among other benefits, improved conditions for the endangered fish species (bull trout and Lost River and shortnose sucker) populations of the basin. The geographic scope of this EA is defined as the upper Klamath River basin, including the entire watershed from Irongate Dam upstream to the headwaters. This EA is intended to provide NEPA compliance for restoration projects conducted between the years 2000 and 2010. The ERO was established in 1993 to sponsor and assist with a variety of restoration activities in the Klamath Basin. The ERO funds and provides technical assistance to restoration projects involving private landholders, concerned groups, and other state, federal, and tribal agencies. Four alternatives are presented in this EA. The proposed alternative (Alternative 1) consists of a comprehensive program of ecosystem restoration, promoting projects in both riparian areas and in upland habitats. This would continue the current program in effect since 1994. NEPA compliance would primarily be carried out via a single, programmatic document saving time and funds. The Fish & Wildlife Service proposes to fund and administer the following projects types: Riparian Projects: (fencing for livestock management; native plant establishment & diversification; non-native plant removal/control; erosion control; contour re-establishment; impoundment removal; wildlife habitat improvements) Wetland Projects: (fencing; wetland restoration and enhancement; wildlife habitat improvements) Upland or Road Projects: (road abandonment, decommissioning, & obliteration; road drainage improvements and storm proofing, re-establishment of historic contours; silvicultural treatments; native plant establishment/diversification; non-native plant removal/control; fencing; landslide treatments; culvert/stream crossing upgrades; erosion control; wildlife habitat improvements). In-stream Projects: (habitat complexity and diversity improvements; hydrologic regime improvements; coarse woody debris supplementation; natural or artificial barrier removal, modification &/or creation; fish screens installation). Alternative 2 would concentrate restoration efforts only on riparian, instream, and wetland areas. Road projects would be conducted only within the riparian corridor, as defined. NEPA compliance would also be conducted programmatically. Alternative 3 would cease all restoration activities conducted and funded by the ERO in the Klamath Basin. This alternative would serve as a benchmark against which the effects of the restoration alternatives discussed above can be compared. Alternative 4, the "No Action" alternative, would continue current management policies with regard to NEPA compliance, providing compliance on a project by project basis requiring independent analysis for each project. The affected environment of the region is described in detail. The environment has been changed significantly since the 1890's due to logging, agriculture and urban development. An extensive system of dams, canals, and drainage structures has resulted in the conversion of approximately 80% of pre-settlement wetlands to agricultural uses. Riparian corridors have been similarly impacted, and upland forests regions have been affected by logging, road construction and other factors. These changes have contributed to problems with the water quality in the region, contributing to the listing of several fish species as threatened or endangered; loss of habitat has affected a large number of other species as well. The environmental effects of each alternative is analyzed. Some short term negative impacts could occur as a result of the projects authorized by both Alternative 1 and Alternative 2, but these would be strongly offset by the expected beneficial results to water quality and habitat conditions. Alternative 1 would be expected to have a greater overall effect on the environment than Alternative 2, since many of the underlying factors with which restoration efforts are concerned originate in upland conditions (i.e. sedimentation and hydrologic functionality). Alternative 3 would result in conditions remaining much as they are currently, although other programs and organizations are making efforts at restoration activities. The environmental impacts of individual projects anticipated under Alternative 4 would be generally the same as for similar projects under Alternative 1. The primary difference between the two alternatives would be the higher efficiency and improved cumulative analysis resulting from a programmatic approach as proposed in Alternative 1. Public participation in the NEPA process has been, and will continue to be, solicited and welcomed. Compliance with state and federal laws and regulations such as the Clean Water Act, National Historic Preservation Act, and the Endangered Species Act, as well as guidelines for contaminant surveys, will be carried out as detailed. While these projects are expected to play an important role in the restoration of the region, none of these alternatives are expected to have a significant impact when compared with the loss of wetland, riparian and upland habitats over the past century, impacts which do occur would be of a cumulatively beneficial nature. Other restoration efforts are being carried out in the area by other governmental and private groups, and it is expected that these combined efforts will achieve important beneficial results for the ecosystem. Title: Programmatic environmental assessment for Klamath Basin Ecosystem Restoration Office Projects, 2000-2010 Author: U.S. Fish and Wildlife Service. Klamath Basin Ecosystem Restoration Office. Year: 2000, 2005, 2004 Programmatic Environmental Assessment Summary This Environmental Assessment (EA) provides compliance with the National Environmental Policy Act (NEPA) for restoration actions undertaken by the US Fish & Wildlife Service's Klamath Basin Ecosystem Restoration Office (ERO) in Klamath Falls, Oregon. These restoration activities are needed due to the large-scale loss of wetland and riparian habitat and degraded water quality. The purpose of these restoration efforts is the improvement of conditions of the watershed with specific regard to habitat and water quality, resulting in, among other benefits, improved conditions for the endangered fish species (bull trout and Lost River and shortnose sucker) populations of the basin. The geographic scope of this EA is defined as the upper Klamath River basin, including the entire watershed from Irongate Dam upstream to the headwaters. This EA is intended to provide NEPA compliance for restoration projects conducted between the years 2000 and 2010. The ERO was established in 1993 to sponsor and assist with a variety of restoration activities in the Klamath Basin. The ERO funds and provides technical assistance to restoration projects involving private landholders, concerned groups, and other state, federal, and tribal agencies. Four alternatives are presented in this EA. The proposed alternative (Alternative 1) consists of a comprehensive program of ecosystem restoration, promoting projects in both riparian areas and in upland habitats. This would continue the current program in effect since 1994. NEPA compliance would primarily be carried out via a single, programmatic document saving time and funds. The Fish & Wildlife Service proposes to fund and administer the following projects types: Riparian Projects: (fencing for livestock management; native plant establishment & diversification; non-native plant removal/control; erosion control; contour re-establishment; impoundment removal; wildlife habitat improvements) Wetland Projects: (fencing; wetland restoration and enhancement; wildlife habitat improvements) Upland or Road Projects: (road abandonment, decommissioning, & obliteration; road drainage improvements and storm proofing, re-establishment of historic contours; silvicultural treatments; native plant establishment/diversification; non-native plant removal/control; fencing; landslide treatments; culvert/stream crossing upgrades; erosion control; wildlife habitat improvements). In-stream Projects: (habitat complexity and diversity improvements; hydrologic regime improvements; coarse woody debris supplementation; natural or artificial barrier removal, modification &/or creation; fish screens installation). Alternative 2 would concentrate restoration efforts only on riparian, instream, and wetland areas. Road projects would be conducted only within the riparian corridor, as defined. NEPA compliance would also be conducted programmatically. Alternative 3 would cease all restoration activities conducted and funded by the ERO in the Klamath Basin. This alternative would serve as a benchmark against which the effects of the restoration alternatives discussed above can be compared. Alternative 4, the "No Action" alternative, would continue current management policies with regard to NEPA compliance, providing compliance on a project by project basis requiring independent analysis for each project. The affected environment of the region is described in detail. The environment has been changed significantly since the 1890's due to logging, agriculture and urban development. An extensive system of dams, canals, and drainage structures has resulted in the conversion of approximately 80% of pre-settlement wetlands to agricultural uses. Riparian corridors have been similarly impacted, and upland forests regions have been affected by logging, road construction and other factors. These changes have contributed to problems with the water quality in the region, contributing to the listing of several fish species as threatened or endangered; loss of habitat has affected a large number of other species as well. The environmental effects of each alternative is analyzed. Some short term negative impacts could occur as a result of the projects authorized by both Alternative 1 and Alternative 2, but these would be strongly offset by the expected beneficial results to water quality and habitat conditions. Alternative 1 would be expected to have a greater overall effect on the environment than Alternative 2, since many of the underlying factors with which restoration efforts are concerned originate in upland conditions (i.e. sedimentation and hydrologic functionality). Alternative 3 would result in conditions remaining much as they are currently, although other programs and organizations are making efforts at restoration activities. The environmental impacts of individual projects anticipated under Alternative 4 would be generally the same as for similar projects under Alternative 1. The primary difference between the two alternatives would be the higher efficiency and improved cumulative analysis resulting from a programmatic approach as proposed in Alternative 1. Public participation in the NEPA process has been, and will continue to be, solicited and welcomed. Compliance with state and federal laws and regulations such as the Clean Water Act, National Historic Preservation Act, and the Endangered Species Act, as well as guidelines for contaminant surveys, will be carried out as detailed. While these projects are expected to play an important role in the restoration of the region, none of these alternatives are expected to have a significant impact when compared with the loss of wetland, riparian and upland habitats over the past century, impacts which do occur would be of a cumulatively beneficial nature. Other restoration efforts are being carried out in the area by other governmental and private groups, and it is expected that these combined efforts will achieve important beneficial results for the ecosystem. Close

• 39. [Image] An examination of the Klamath Basin crisis : restructuring the discourse within an identity-based framework

  	Thesis (B.A.) -- Whitman College, 2002; Includes bibliographical references (leaves 79-83)
  	Citation × Citation Citation Abstract Copy Title: An examination of the Klamath Basin crisis : restructuring the discourse within an identity-based framework Author: Dornsife, Alison M. Year: 2002, 2005, 2004 Thesis (B.A.) -- Whitman College, 2002; Includes bibliographical references (leaves 79-83) Title: An examination of the Klamath Basin crisis : restructuring the discourse within an identity-based framework Author: Dornsife, Alison M. Year: 2002, 2005, 2004 Thesis (B.A.) -- Whitman College, 2002; Includes bibliographical references (leaves 79-83) Close

• 40. [Image] Irrigation in Klamath County : cooperative irrigation investigation with the Office of Experiment Stations, United States Department of Agriculture

  	CONTENTS. Page Introduction 2620 5 Climatic conditions 2620 6 Units of measurement 2620 7 Losses by seepage and evaporation 2620 7 Duty of water 26208-10 Evaporation 2620 12 Soil and water analyses ...
  	Citation × Citation Citation Abstract Copy Title: Irrigation in Klamath County : cooperative irrigation investigation with the Office of Experiment Stations, United States Department of Agriculture Author: Kent, F.L. (Fred LeRoy) Year: 1905, 2005 CONTENTS. Page Introduction 2620 5 Climatic conditions 2620 6 Units of measurement 2620 7 Losses by seepage and evaporation 2620 7 Duty of water 26208-10 Evaporation 2620 12 Soil and water analyses 262014-15 Data relative to alfalfa growing 2620 15 Summary 2620 16 ILLUSTRATIONS. I. Wing dam at intake of Ankeny canal 269 4 II. Checked field of M. E. Robinson 2620 10 III. Headgate, Ankeny canal 2620 11 Title: Irrigation in Klamath County : cooperative irrigation investigation with the Office of Experiment Stations, United States Department of Agriculture Author: Kent, F.L. (Fred LeRoy) Year: 1905, 2005 CONTENTS. Page Introduction 2620 5 Climatic conditions 2620 6 Units of measurement 2620 7 Losses by seepage and evaporation 2620 7 Duty of water 26208-10 Evaporation 2620 12 Soil and water analyses 262014-15 Data relative to alfalfa growing 2620 15 Summary 2620 16 ILLUSTRATIONS. I. Wing dam at intake of Ankeny canal 269 4 II. Checked field of M. E. Robinson 2620 10 III. Headgate, Ankeny canal 2620 11 Close