FEB., 1912. MaAmMALs oF ILLINOIS AND WISCONSIN—CoRY. 321 
of beef suet the size of a walnut and the cavity securely closed, to keep 
out the moisture. Lean meat should not be used, as the juice soon 
dissolves the gelatine of the capsule. The necessary number of poisoned 
baits may be prepared and carried in a tin can or pail. They should 
never be handled except with gloved hands or forceps. The baits may 
be dropped from horseback along a scented drag line made by dragging 
an old bone or piece of hide well saturated with the fetid scent, or they 
may be placed around or partly under any carcass on which the wolves 
or coyotes are feeding, or along trails which they are in the habit of 
following. Gelatine capsules quickly dissolve in the juices of the 
stomach; Strychnine taken on an empty stomach sometimes kills in a 
very few minutes, but on a full stomach its action is much slower, and 
the animal may have time to travel a considerable distance.’ 
VgS Y m yy li 
Ly 2 ae as 
Map illustrating supposed distribution of Big Wolves in the United States, southern Canada and 
northern Mexico. The range limits of the various forms have not been satisfactorily determined. 
Canis nubilus Say. (Long’s Exped. Rocky Mts., I, 1823, p. 169.) Type locality — 
Vicinity of Council Bluffs, Iowa. 
Canis occidentalis (RICHARDSON). (Fauna Bor. Amer. I, 1829, pp. 60-65.) Type 
locality — Northern North America. 
Canis albus (SaBINE). (Franklin’s Narrative, Journ. to Polar Sea, 1823, p. 655.) 
Type locality — Fort Enterprise, Mackenzie, Canada. 
Canis ater (RICHARDSON). (Fauna Bor. Amer., I, 1829, p. 70.) Type locality — Not 
definite, but now generally restricted to Florida. 
Canis mexicanus Linn. (Syst. Nat., XII ed., I, 1766, p. 60.) Type locality — 
Mexico. 
Canis rufus (Aub. and Bacu.). (Quadrupeds of N. Amer., II, 1851, p. 240.) Type 
locality — Texas. Smaller and more reddish in color than other members of 
this group. In size it is small for a ‘‘big wolf’ and large for a Coyote. 
