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• 1261. [Image] Continental Glacier

  	Image Description from historic lecture booklet: "Ice bodies of the third class, as their name implies, are of vast extent and may even cover entire continents. Existing examples are confined to Greenland ...
  	Citation × Citation Citation Abstract Copy Title: Continental Glacier Year: 1915 Image Description from historic lecture booklet: "Ice bodies of the third class, as their name implies, are of vast extent and may even cover entire continents. Existing examples are confined to Greenland and to Antarctic regions. Others that have now vanished left unmistakable records over large portions of northeastern North America and northwestern Europe. The principal characteristic of continental glaciers are their vast extent, their comparatively level surface, and the prolongation of portions of their borders into lobes and even into well-defined streams, were the topographic and other conditions are favorable. The total amount of snow and ice on all land is perhaps as much as a million cubic miles. If this amount of ice were all melted and returned to the sea, it would raise its level about thirty feet." Title: Continental Glacier Year: 1915 Image Description from historic lecture booklet: "Ice bodies of the third class, as their name implies, are of vast extent and may even cover entire continents. Existing examples are confined to Greenland and to Antarctic regions. Others that have now vanished left unmistakable records over large portions of northeastern North America and northwestern Europe. The principal characteristic of continental glaciers are their vast extent, their comparatively level surface, and the prolongation of portions of their borders into lobes and even into well-defined streams, were the topographic and other conditions are favorable. The total amount of snow and ice on all land is perhaps as much as a million cubic miles. If this amount of ice were all melted and returned to the sea, it would raise its level about thirty feet." Close

• 1262. [Image] Hanging Valleys

  	Image Description from historic lecture booklet: "Valleys through which glaciers pass are widened and deepened, and their walls made smoother. The deepening of a mountain valley by glacial erosion sometimes ...
  	Citation × Citation Citation Abstract Copy Title: Hanging Valleys Year: 1915 Image Description from historic lecture booklet: "Valleys through which glaciers pass are widened and deepened, and their walls made smoother. The deepening of a mountain valley by glacial erosion sometimes brings about a curious relation between it and its tributaries. The lower ends of the tributary valleys are much higher than the valleys which they join. Such valleys are called hanging valleys. They abound in the mountains of the western part of the United States, and in other mountains where glaciers formerly existed. The tributary may be left hanging, because the main valley is deepened by glacial erosion, while the tributary is not; or in some cases both the main and the tributary valley are deepened, but the former much more than the latter." Title: Hanging Valleys Year: 1915 Image Description from historic lecture booklet: "Valleys through which glaciers pass are widened and deepened, and their walls made smoother. The deepening of a mountain valley by glacial erosion sometimes brings about a curious relation between it and its tributaries. The lower ends of the tributary valleys are much higher than the valleys which they join. Such valleys are called hanging valleys. They abound in the mountains of the western part of the United States, and in other mountains where glaciers formerly existed. The tributary may be left hanging, because the main valley is deepened by glacial erosion, while the tributary is not; or in some cases both the main and the tributary valley are deepened, but the former much more than the latter." Close

• 1263. [Image] Panorama of Auckland

  	Image Description from historic lecture booklet: "Auckland is the largest city of New Zealand. It lies on an isthmus at the foot of Mount Eden, which is six hundred feet high; it is not far from the mouth ...
  	Citation × Citation Citation Abstract Copy Title: Panorama of Auckland Year: 1915 Image Description from historic lecture booklet: "Auckland is the largest city of New Zealand. It lies on an isthmus at the foot of Mount Eden, which is six hundred feet high; it is not far from the mouth of the Waikato River, the chief stream of the archipelago. It is a great business city and port of call. It is the seat of the University, and has a fine museum, rich in Maori remains. The Public Library includes the valuable library of Sir George Grey. The surround bills are old volcanoes with fine craters, such as Mount Eden; the most recent in eruption was probably Rangitoto on an island in the gulf." Title: Panorama of Auckland Year: 1915 Image Description from historic lecture booklet: "Auckland is the largest city of New Zealand. It lies on an isthmus at the foot of Mount Eden, which is six hundred feet high; it is not far from the mouth of the Waikato River, the chief stream of the archipelago. It is a great business city and port of call. It is the seat of the University, and has a fine museum, rich in Maori remains. The Public Library includes the valuable library of Sir George Grey. The surround bills are old volcanoes with fine craters, such as Mount Eden; the most recent in eruption was probably Rangitoto on an island in the gulf." Close

• 1264. [Image] Morris, Elliam Small, House (Yamhill, Oregon); Eliam Small Morris House (Yamhill, Oregon)

  	Historic American Buildings Survey
  	Citation × Citation Citation Abstract Copy Title: Morris, Elliam Small, House (Yamhill, Oregon); Eliam Small Morris House (Yamhill, Oregon) Year: 1853 Historic American Buildings Survey Title: Morris, Elliam Small, House (Yamhill, Oregon); Eliam Small Morris House (Yamhill, Oregon) Year: 1853 Historic American Buildings Survey Close

• 1265. [Image] Fort Yamhill Blockhouse (Dayton, Oregon)

  	Historic American Buildings Survey
  	Citation × Citation Citation Abstract Copy Title: Fort Yamhill Blockhouse (Dayton, Oregon) Year: 1856 Historic American Buildings Survey Title: Fort Yamhill Blockhouse (Dayton, Oregon) Year: 1856 Historic American Buildings Survey Close

• 1266. [Image] Fort Yamhill Blockhouse (Dayton, Oregon)

  	Historic American Buildings Survey
  	Citation × Citation Citation Abstract Copy Title: Fort Yamhill Blockhouse (Dayton, Oregon) Year: 1856 Historic American Buildings Survey Title: Fort Yamhill Blockhouse (Dayton, Oregon) Year: 1856 Historic American Buildings Survey Close

• 1267. [Image] Pioneer Courthouse (Portland, Oregon); Pioneer Post Office (Portland, Oregon); Pioneer Court House (Portland, Oregon)

  	Historic American Buildings Survey
  	Citation × Citation Citation Abstract Copy Title: Pioneer Courthouse (Portland, Oregon); Pioneer Post Office (Portland, Oregon); Pioneer Court House (Portland, Oregon) Author: Mullett, Alfred B.; Knox, James T. Year: 1875 Historic American Buildings Survey Title: Pioneer Courthouse (Portland, Oregon); Pioneer Post Office (Portland, Oregon); Pioneer Court House (Portland, Oregon) Author: Mullett, Alfred B.; Knox, James T. Year: 1875 Historic American Buildings Survey Close

• 1268. [Image] Gay, George K., House (Hopewell, Oregon); George K. Gay House (Hopewell, Oregon)

  	Historic American Buildings Survey
  	Citation × Citation Citation Abstract Copy Title: Gay, George K., House (Hopewell, Oregon); George K. Gay House (Hopewell, Oregon) Year: 1841 Historic American Buildings Survey Title: Gay, George K., House (Hopewell, Oregon); George K. Gay House (Hopewell, Oregon) Year: 1841 Historic American Buildings Survey Close

• 1269. [Image] Parker, William, House (Parkerville, Oregon); William Parker House (Parkerville, Oregon)

  	Historic American Buildings Survey, HABS OR-46
  	Citation × Citation Citation Abstract Copy Title: Parker, William, House (Parkerville, Oregon); William Parker House (Parkerville, Oregon) Year: 1852 Historic American Buildings Survey, HABS OR-46 Title: Parker, William, House (Parkerville, Oregon); William Parker House (Parkerville, Oregon) Year: 1852 Historic American Buildings Survey, HABS OR-46 Close

• 1270. [Image] Cook, Amos T., House (Lafayette, Oregon); Amos T. Cook House (Lafayette, Oregon)

  	Historic American Buildings Survey
  	Citation × Citation Citation Abstract Copy Title: Cook, Amos T., House (Lafayette, Oregon); Amos T. Cook House (Lafayette, Oregon) Year: 1858 Historic American Buildings Survey Title: Cook, Amos T., House (Lafayette, Oregon); Amos T. Cook House (Lafayette, Oregon) Year: 1858 Historic American Buildings Survey Close