70 The American Geologist. Auf^ust, i898 
al bone of the skull and the greater portions of the two horn- 
cores and a single tooth. These bones were found in a grav- 
elly deposit and were partially coated with a cemented mass of 
oxide or iron and pebbles and sand. The drawing accom- 
panying the description shows the breadth of the frontal bone 
and the portions of the horn-cores preserved. These horn- 
cores are shown to extend outward and a little upward. The 
ends of each horn-core were broken ofif. The right horn-core 
measured two feet and the left one eighteen inches, and the 
distance between the broken ends including the frontal bone 
was 56 inches. The frontal bone between the horns was 14 
inches in breadth, and between the external angles of the or- 
bits 14! inches and between the internal angles of the orbits 
\\V2 inches. 
The bones of the horns are described as nearly round (cyl- 
indrical). The circumference at the base was 17 inches, and at 
a distance of 18 inches from the skull the circumference was 
14H inches. It was the opinion of Dr. Carpenter that the 
horn-cores when perfect must have been four feet in length 
each, and that with the addition of only one foot to each for 
the horny parts the total breadth between the tips of the 
horns must have been at least eleven feet. 
In the"Natural History of the State of New York," DeKay* 
enumerates four species of fossil Bovidae: Bos bombifrons 
Harlan, Bos latifrons Harlan, Bos pallassi De Kay and Bos 
moschatus Gadman (the musk ox). Of B. bombifrons Dr. 
Leidy says this species was established by Dr. Wistar in 1814 
upon a part of a skull with both horn-cones nearly entire, 
found at Big Bone Lick, Kentucky. To this species Dr. Har- 
lan gave the name of Bos bombifrons.f 
In September, 1877, Prof. O. C. Marsh ^described two new 
species of Bison, one B. ferox, from the lower Pliocene of Ne- 
braska and the other B. alleni, also from the lower Pliocene of 
Nebraska. These were represented by well preservd horn- 
cores, now in the museum of Yale University, where, by the 
courtesy of Prof. Marsh I have been permitted to critcally ex- 
amine them. 
'^Zoology Part I, p. no. 
fFauna Americana, p. 271. 
t Am. Jour. Sci., XIV, No. 81, Sept. 1877, p. 252. 
