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" The mounds vary, in magnitude, vastly from each other, and' somewhat so in shape; some are 'of a conical figure, ending on the top in a point, and as steep on the sides as the earth could be made to lie; others are of the same form, except that they present... "
History of the United States of America: With a Brief Account of Some of the ... - 第 112 頁
Charles Prentiss, William Sullivan 著 - 1821 - 276 頁
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The Ohio Gazetteer, and Travelers Guide: Containing a Description of the ...

Warren Jenkins - 1841 - 566 頁
...not so numerous. The mounds vary, in magnitude, vastly from each other, and somewhat BO in shape ; some are of a conical figure, ending on the top in...others are of the same form, except that they present a flit area on the top, like a cone cut off at some distance from its vertex, in a plane coincident with...
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The History of Polk County, Iowa: Containing a History of the County, Its ...

1880 - 1068 頁
...mounds vary in magnitude, and also somewhat in shape. Some are conical, ending sharply at the summit, and as steep on the sides as the earth could be made...Others are of the same form, except that they present a flat area on the top, like a cone cut off at some distance from its vortex, in a plane coincident with...
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The History of Boone County, Iowa: Containing ... Biographical Sketches ...

1880 - 740 頁
...mounds vary in magnitude, and also somewhat in shape. Some are conical, ending sharply at the summit, and as steep on the sides as the earth could be made...Others are of the same form, except that they present a flat area on the top, like a cone cut off at some distance from its vortex, in a plane coincident with...
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The History of Marion County, Iowa: Containing a History of the County, Its ...

1881 - 916 頁
...mounds vary in magnitude, and also somewhat in shape. Some are conical, ending sharply at the summit, and as steep on the sides as the earth could be made...Others are of the same form, except that they present a flat area on the toy), like a cone cut off at some distance from its vortex, in a plane coincident...
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Early Western Travels, 1748-1846: A Series of Annotated Reprints of ..., 第 19 卷

Reuben Gold Thwaites - 1905 - 378 頁
...are not so numerous. The mounds vary, in magnitude, vastly from each other, and somewhat so in shape; some are of a conical figure, ending on the top in...others are of the same form, except that they present a flat area on the top, like a cone cut off at some distance [86] from its vertex, in a plane coincident...
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Early Western Travels, 1748-1846: Bullock, W. Journey from New Orleans to ...

Reuben Gold Thwaites - 1905 - 368 頁
...are not so numerous. The mounds vary, in magnitude, vastly from each other, and somewhat so in shape; some are of a conical figure, ending on the top in...area on the top, like a cone cut off at some distance [86] from its vertex, in a plane coincident with its base, or with the horizon. Others again are of...
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Early Western Travels, 1748-1846: A Series of Annotated Reprints of ..., 第 19 卷

Reuben Gold Thwaites - 1905 - 366 頁
...sides as the earth could be made to lie; others are of the same form, except that they present a flat area on the top, like a cone cut off at some distance [86] from its vertex, in a plane coincident with its base, or with the horizon. Others again are of...
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