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Things to Know and Do 349 alt to study because they are so seldom seen. Partly due to man's endless pursuit, the wild fourfoots art* nearly all iKxrtumal now; but they are there, and far more numerous than you would imagine. If you live in New York City, for exam|)lo, you may be sure that within five miles of the City Hall you can find twenty wild quadrupeds living their lives as they always did. Thus, there are muskrats along the Bronx and Harlem rivers in the salt marshes; there are red, gray, and Hying squirrels, as well as chip- munks, in most of the parks. There are plenty of woodchucks in Westchester County, although I do not know of any within the five-mile radius. Of course, there are deermice and short-tailed field mice, and jumping mice in most of the large parks or along the Jersey shore of the Hudson; and where there are mice there are weasels, and where there are weasels there are mink. The cottontail rabbit is common in sonic of the large parks and in most of the near woodlands, and there are at least three species of shrew and mole within the limibs. If we go a little farther into Westchester County or Jersey, we shall i iiU'i the region of the skunk, the fox, the common deer, the coon, and the possum. So that the New York naturalist has a large opiK)rt unity among tbequadruiHjds; and the resident of Chicago, Boston, or Philadel- phia is jusi as well oil ; while, of course, Uie country girl has all the world before her. But we seldom see the things, how are we to know that they are there? By the tracks chiefly. The mud, the dust, or the snow will tell next morning much alx)ut the creature that paued in the nif^t, and in time, about all that dwell nearby. "Life Histories of Northorn Animals," by Ernest Thompson Seton, is the only bo<ik that gives a full account of t'u; common animals and their tracks; but a good book on Tracks and Track- ing has been published by J. Brunner. The difficulties in the way of the student of mammals are per- haps the largest of all, but the rewards are as great; and every skull, every skin, every good track drawing, is a httte victory that will give you pleasure to see as long as 3 ou live. Jnsech are easily SiUtlied and preserved. A collection of butterflies, n.ade according to instruction in the "Butterfly Book," Doubleday, Page & Company, is easily begun; while beetles and other orders of bugs, if less interesting, are yet more easily made. In gowrai, to those who would know the wild thinfp: Keep a