During the last few years great interest has been shown in the reintroduction of elk in parts of their former range, where they had been exterminated and where conditions are still suitable for their perpetuation. Such efforts are meeting with much success. Not only do the animals thrive and increase rapidly, but local sentiment is almost unanimous in their favor. This is well shown by the active interest taken by both cattle and sheep owners in northern Arizona in regard to a band of elk introduced a few years ago on their mountain stock ranges. The stockmen exercise a virtual wardenship over these animals that insures them against molestation, and the herd is rapidly increasing. As against this, we have the despicable work of poachers, who are shooting elk for their two canine teeth and leaving the body to the coyotes. Information has been received that more than 500 elk were ruthlessly slaughtered for this purpose about the border of Yellowstone National Park during the winter of 1915-1916. =MULE DEER= (=Odocoileus hemionus= and its subspecies) Mule deer are larger than the common white-tails, with a heavier, stockier form. Their strongest characteristics lie in the large doubly branching antlers, large broad ears, and rounded whitish tail with a brushlike black tip. Their common name in this country and the name “venado burro” in Mexico are derived from the great, donkeylike ears. Their antlers vary much in size, but in some examples are almost intermediate between those of the white-tail and of the elk. Antlers of the mule deer and of the black-tail agree in having the tines all pronged, in contrast with the single spikes of the white-tails. In summer these deer have a rich, rusty red coat which is exchanged in winter for one of grayish brown. [Illustration: WAPITI, OR AMERICAN ELK] The range of mule deer extends from northern Alberta, Manitoba, and western Iowa to the State of San Luis Potosi, on the Mexican table-land, and west to Lower California and the coast of California. Within these limits they inhabit different types of country, from the deciduous forests along streams on the eastern border of the Great Plains to the open pine forests of the high western mountains, the chaparral-covered hillsides of southern California, and the thickets of mesquites, acacias, and cactuses on the hot and arid plains of Sonora. Several geographic races of this deer have resulted from these varied conditions. [Illustration: MULE DEER] [Illustration: BLACK-TAILED DEER] In spring in the Rocky Mountains the does leave the bands with which they have passed the winter and seek undisturbed retreats among forest glades or along scantily wooded slopes of canyons, where they have two or three handsomely spotted fawns with which they remain apart throughout the summer.