186 
JOURNAL OF MAMMALOGY 
THE WHITE-TAILED JACK RABBIT, LEPUS TOWNSENDII CAMPANIUS, INTRODUCED 
INTO WISCONSIN 
The occurrence of Lepus townsendii campanius Hollister as a native mammal 
in Wisconsin has always seemed to me more or less of a possibility. It was, 
therefore, not entirely a surprise when on August 13, 1918, I saw numerous 
tracks, which appeared to belong to this species, on the sand barrens north of 
the Chippewa River at Meridean, Dunn County, Wisconsin. Although careful 
search was made for the animals in the limited time at my disposal, none was 
seen. Returning to the village I made inquiry of several residents and learned 
that these jack rabbits were not native, but had been introduced from Minne- 
sota about the year 1908 and that they had thrived very well. The next day, 
August 14, a mounted specimen in winter pelage, which had been collected on 
these sand barrens about 1912, was examined in the collection of Mr. John N. 
Clark, of Meridean, Wisconsin. 
— Hartley H. T. Jackson. 
MEASUREMENTS OP AN UNUSUAL ELK HEAD 
The following measurements of the head of a fine old male elk {Cervus cana- 
densis) which was found dead near the northern boundary of the park, February 
25, 1920, were made by me in the course of work at the museum. National Park 
Service, Yellowstone Park, Wyoming. While the lengths of horn and tines are 
not extraordinary, I can find no record of larger measurements of circumference 
of beam. 
Right hand horn 
45 
Length of beam 
Left hand horn 
48 
m 
1st tine 
m 
m 
2d tine 
m 
15i 
3rd tine 
m 
17 
4th tine 
7 
13 
5th tine 
171 
4 
6th tine 
6 
none 
7th tine 
9 
12 
Total length beams and tines 21 ft. 6| 
Circumference at burr 
in. 
12 
8-1 
Circumference between 
1st and 2d tines 
8i 
8f 
2d and 3rd tines 
8i 
9f 
3rd and 4th tines 
^2 
Widest spread 50 inches 
Widest spread inside of beams 38 inches 
— M. P. Skinner. 
Yellowstone Park, Wyoming. 
