...A thousand ofthese fish, which measured about two feet and a half in length, came upthe river, and a large quantity were retained by fixing dams across thestream... 
Jules Verne William Henry Giles Kingston 「Abandoned」
...We findhim a creature of intelligence far above that of hisnear kinsmen, and endowed with some extraordinaryinstincts that guide him in making dams, houses,etc...
Ernest Thompson Seton 「Wild Animals at Home」
...But when I examinedthe ground again in 1912, the dams were broken,the ponds all dry...
Ernest Thompson Seton 「Wild Animals at Home」
...Last September I found a fine lots of dams anddammers on the southeast side of Yellowstone Lakewhere you may go on a camera hunt with certaintyof getting Beaver pictures...
Ernest Thompson Seton 「Wild Animals at Home」
...Even at this tender age calves are noencumbrance to the herd's movement; the youngest climb hills andcross rivers, assisted by their dams...
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...The dams are built of the same material as the houses...
Elmer Harry Kreps 「Science of Trapping」
...Old houses and dams are found frequently, but if there is no fresh cutting about, one may be certain that the house is uninhabited...
Elmer Harry Kreps 「Science of Trapping」
...He gets from eight hundred to one thousandhalf-blooded sheep, worth double their dams, and ready to be made thebasis of another and higher stride in improvement...
Robert Jennings 「Sheep, Swine, and Poultry」
...It is much better for the lambs and for their dams that they be weanedfrom three and a half to four months old...
Robert Jennings 「Sheep, Swine, and Poultry」
...These mounds are, as Bailey says, characteristic of the species, andare as unmistakable as muskrat houses or beaver dams, and as carefullyplanned and built for as definite a purpose—home and shelter...
Charles T. Vorhies and Walter P. Taylor 「Life History of the Kangaroo Rat」
...Beaver dams are solid structures always, built upof logs, brush, stones, and driftwood, well knit togetherby alder poles...
William J. Long 「Ways of Wood Folk」
...In the alder or birch swamps, wherehe usually lives, he oft-times builds from six to eight little dams fromknoll to knoll, and in this way makes a pond sufficiently large for hispurposes...
Royal Dixon 「The Human Side of Animals」
...But in the ease of a town-site on shallow,narrow waters, dams are absolutely necessary to insure sufficient depthto conceal the beavers, and to prevent obstruction by ice...
Royal Dixon 「The Human Side of Animals」
...Men buildvarious kinds of dams and in various kinds of places,with various kinds of material and for various kindsof uses...
John Burroughs 「Ways of Nature」
...Beavers do the work of beavers, they cutdown trees and build dams, and all beavers do italike and with the same degree of untaught skill...
John Burroughs 「Ways of Nature」
...It spends a great part of its time in the water, where it constructs dams and builds huts of the branches of trees...
Samuel Griswold Goodrich 「Illustrative Anecdotes of the Animal Kingdom」
...The first work ofthe agricultural year is the cutting of the dams which havehitherto prevented the swollen river from flooding the canals andthe fields...
Sir James George Frazer 「The Golden Bough」
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