OR, A TREATISE ON PILE. 19 
8 inches; diameter, + of aninch. Thickest in the centre and tapering to both extremities; 
apex pointed. 
Fig. 11, represents a transverse section of one of these spines. 
Or tHE Spine oF THE Pecary.—Gen. Dycotyles of Cuv., from “dis,” double, and 
“ Kotule,” a cavity, or navel. There are two species, D. torquatus of . Cuve,, and .D: 
labiatis, (white lipped, see Aud. and Back. Quad. 1 v., 233.) It somewhat resembles a 
hog, but has no tail, and the canine teeth do not extend beyond the margin of the lips. 
Found in South America. 
The spine we are about to describe came from a full grown male, exhibited in Phila- 
delphia, at the Zodlogical Institute in the winter of 1847-8. 
Length of the button, ;3, of an inch; of the neck, 35, and of the shaft, 4 inches and 
10.4 inches and ;,8,. Diameter of the button ;1,5, of the neck 4, of the shaft ;5> by 
10 90? 
ziy- Shape, oval; colors, horny white, brown and black, in clouds and patches. Weight, 
tof agrain. Surface, smooth. Direction, atan acute angle. Inclination, straight, except 
slightly undulated. See fig. 12, where No. 1 represents the button, neck and a small 
portion of the shaft. No. 2, a transverse section of the button. Nos. 3 and 4, transverse 
sections of the shaft. No. 5, a longitudinal section of the cortex. No. 6, the 
termination of the shaft, and No. 7, a longitudinal section of the stellated figure 
represented in No. 4. 
Ductility, Elasticity and Tenacity.— 
There was no extension under 6,298 grains. 
With 6,298 grains the extension was ;4,5 of an inch, the shrinking upon removal of the 
weight complete. 
oeraiae r oE ts 
(Asie : He : ee 
ce 8,133 ce ce $0 ce ce cc 
“ 8613 « G dr « ‘ “ 
“ 9,093 « “ af “ “ “ 
9 98 a gs & Minus 1, of an inch. 
“ 10,226 a ds a oe 
“ 10,673 “ or 14 Ibs. « 10 “ = 
“11,153 “ 4 “ ds 
© 11,633 « “ 13 “ _ 
“23, « 15 “ fn 
S73) eeror 2. lbs. 3° or 3 of the whole. 18 
CE VVAGos 6 the spine parted. 
Or Wuiskers.—Roget (Animal and Vegetable Physig. p. 25,) says that the whiskers of 
the feline, and of some other animals, are supplied with vessels and nerves, andar e thus 
converted into organs of touch*. 
* Tn Illust. of Nat Hist. 855, whiskers are said to increase the sense of smell. (!) 
