For every one of our large beasts there should be at least one such work as Lewis Morgan’s book on the beaver. The observations of many different men, all accurate observers of wide experience, will be needed to make any such book complete. Most hunters can now and then supply some interesting experiences. Thus Gifford Pinchot and Harry Stimson, while in the Montana Rockies last fall saw a she white goat beat off a war eagle which had attacked her yearling young. The eagle swooped on the yearling in most determined fashion; but the old she, rising on her hind legs, caught the great bird fairly on her horns; and the eagle was too roughly handled to repeat the onslaught. At nearly the same time, in British Columbia, Senator Penrose and his brother were hunting bears. The brother killed a yearling grizzly. While standing over the body, the old she appeared and charged him. She took two bullets without flinching, knocked him down, bit him severely, and would undoubtedly have killed him had she not in the nick of time succumbed to her own mortal wounds. Recently there has appeared a capital series of observations on wolves by a trained field naturalist, Mr. Vernon Bailey. These first-hand studies of wolves in their natural haunts show, among other things, that, unlike the male cougar, the male wolf remains with the female while she is rearing her young litter and, at least sometimes, forages for her and them. According to Mr. Bailey’s observations the female dens remote from all other females, having a large number of pups in a litter; but the following interesting letter shows that in exceptional cases two females may den together or near by one another. It is written to Mr. Phillips, the joint author, with W. T. Hornaday, of the admirable “Camp-Fires in the Canadian Rockies,” a book as interesting and valuable to the naturalist as to the hunter. The letter runs as follows: “MEYERS FALLS, WASH., _Dec. 23, 1906_. “_Mr. John M. Phillips, Pittsburg, Pa._