. The American natural history; a foundation of useful knowledge of the higher animals of North America. Natural history. 78 ORDEES OP MAMMALSâGNAWING ANIMALS burrows. As elsewhere noted, they are often heard barking after they have gone in. "The burrow was opened the day after bi- sulphide of carbon had been used for destrojdng the animals, and the material carrying the bi- sulphide was found at the bottom of the vertical "â â at;- serve to hold its numbers in check. The most in- veterate of these appear to be the coyote, badger, black-footed ferret and ; The Woodch
. The American natural history; a foundation of useful knowledge of the higher animals of North America. Natural history. 78 ORDEES OP MAMMALSâGNAWING ANIMALS burrows. As elsewhere noted, they are often heard barking after they have gone in. "The burrow was opened the day after bi- sulphide of carbon had been used for destrojdng the animals, and the material carrying the bi- sulphide was found at the bottom of the vertical "â â at;- serve to hold its numbers in check. The most in- veterate of these appear to be the coyote, badger, black-footed ferret and ; The Woodchuck, or Ground-"Hog,"' is tol- erated on the farms of New England because he is wise enough to live on clover and other l^. Mound- B. Fiinjiytl -jha/ied cnCrarue/Co burrow C. Mauvnassaq^4-'i _ ab-oui IS:{cd, lit length- , , ., itassageS'/zhamUncith. E. !UfilU( F. llnmtdiiarl ofhorUortbtlfUiiscMe thU,tdnth-tca-thUcl4-fKtlong) G .Niche IcayK aioicak-for omfirainidag- ^(llinchiii,dMmcttr6y3iiv- chei in height) \^,AbiOrHlii matter rurrying buutiihuie uf car bow. K .Fo&ilipn ofB-oarie doers as found after use of&LSiafiliide ofxarboiv \^M]dk ofhonzontalpcuscwt, itfcit PKAIRIB-" DOG " BURROW. From Dr. C. Hart Merriam, "Yearbook," Department of Agriculture, for 1901. part, just where the horizontal part turns off. Two dead animals were found, one in the hori- zontal part, the other in the nest, as indicated by the letter K in the diagram. "The Prairie-Dog has several natural enemies which, when not interfered with by man, usually and let the vegetable gardens alone. In the East he is the only representative of the marmots. In form he is short and stout, and his flat head and beady, black eyes give him a surly look. He is not hvely and cheerful in his habits, hke a ' Mar-^mo'ta mo' Please note that these images are extracted from scanned page images that may ha
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