SS 
OR, A TREATISE ON PILE. 39 
With 320 crains it stretched 1° of an inch, minus ,* 
to) 90 9 ( 
al 
“ee 330 “6 oe Z 43 “ce oe bo 
6c“ 340 ““ 6c 14 ‘c “cc i 
ss 360 6“ “ce af “e “io 38 
Gh a700 a a sie ‘ony 34 
4c 380 “cc 66 4 9 6c e 2 a 
ra 460 <«“ 6c a5 46 be 36 
““ 480 as “6 a “é sa 4g 
oe A90 cc 
Or THE Pavep Cortex or THE Eik.—(See fig. 44.)—Of the Hairs of the Elk, or 
Moose Deer.—(C. alces.)—Specimen from the Zodlogical Institute, of Philadelphia. The 
Elk has three varieties of pile:—Ist. The Hairs of the Breast.—Length, 6 to 63 inches; 
diameter, from 1, to ;};ths of an inch; undulated; highest wavesin the centre of the 
stalk; number of waves, 25; flexibility, feeble; when bent forms a right angle, and 
remains in that position; button, spindle-shaped, succeeded by a tapermg neck; both 
transparent; shaft, opaque, commencing at the inferior extremity with light stone color, 
which, after continuing for an inch, becomes light brown, gradually darker to the apex; 
cortex, paved; compressed pentagons, of a light shade, with darker interstices; apex, 
pointed. \ 
2d. Hairs of the Body.—Leneth, 2 inches; diameter, 5 of an inch to ;45 of an inch; 
undulated ; color, white, opaque, passing into stone-color, and ending, at the apex, in light 
brown; flexibility, feeble; when bent forms a right angle, and remains in that position ; 
button, spindle-shaped, succeeded by a narrow neck, both of which are transparent; cortex, 
paved; compressed pentagons, with interstices of a darker shade. 
Sometimes the coloring matter may be seen through the cortex, but it is not in a central 
canal, but in confused masses of various shades. 
The wool of this pile seems to be formed of distinct sections ; apex, pointed. 
Ductility, Elasticity and Tenacity.—It took 270 grains to deprive it of its undulation. 
With 670 grains it stretched j>th of an inch, elasticity entire. 
6c 6c (43 2 c 6c 
840 ak 
“ Ld 3 a3 Le c “cc 
870 as 
ot 970 6b 3 ats 73 ; 6c 
Gee TSAO ete broke. 
This hair is, by this experiment, much changed in shape. 
Tue PILE or THE Dicranocerus AMERICANUS, Rocky Mountain, AMERICAN, or Lonc- 
Hornep ANTELOPE.—Specimen presented by Prof Samuel 8S. Haldeman. 
Hair of the Flank.—Length, about 3 inches; shape, imperfect, oval* ; color, white; 
* Care must be taken in fixing this hair so as to cut a perfect disk, as the filament is so flexible that it can be pressed 
into artificial shapes. 
10 
