62 TRICHOLOGIA MAMMALIUM ; 
i 
tenacity, broke with 820 grains ;* button, sometimes a mere swelling of the posterior 
extremity of the shaft, at others spindle or slightly hooked, and cracked at the lower 
extremity ; sheath, none ; follicle, none ; shaft—cortex, friable ; intermediate fibres, white ; 
fibrils, very minute; one measured less than the ;>\;> of an inch; apex, pointed and 
abrupt; no furcations; disk, has a central white spot. 
No. 6. Examination and Description of hair and a portion of scalp of the skull of 
another Aztec, from Mexico, North America.—Specimen presented by Prof. 8. G. Morton, 
M. D., of Philadelphia, being taken from a skull in the Academy of Natural Science, of 
Philadelphia. 
General Appearance of the scalp, is that of dark colored, dried dirt; when rendered 
translucent, found to be set with hair in tufts; length, (artificial,) 1 inch; shape, cylin- 
drical ; diameter, 34; of an inch; color, dark brown; no lustre; button, spindle-shaped, 
dark colored, and divided in the centre; length, ;},;; diameter, ;4,; that of the shaft 
being ;4; of an inch; the button, of a young hair, measured in length, ;},; im diameter, 
zi; that of the shaft being ;3, of an inch; sheath, none; follicle, none; shaft—cortex, 
friable, easily removed; intermediate fibres, white; fibrils, very minute; one was less than 
the =>, of an inch; apex, pointed and abrupt; no furcation; disk, uniform color. 
No. 7. Examination and Description of hair and a portion of the scaip of an ancient 
Indian, from a skull found in the interior of Brazil, South America.—Specimen presented 
by Prof. S. G. Morton, M. D., of Philadelphia. 
General Appearance.—Of the scalp, that of granulated, black soil; of the pile, in tufts 
of coarse, black, dead hair; length, (artificial,) 5 inches; shape, cylindrical; diameter, 
51; of an inch; button, none—or a mere swelling of the posterior extremity of the shaft 
fractured; color, black; no lustre; sheath, none; follicle, none; shaft—cortex, black, 
opaque ; direction and inclination, unknown ; ductility, with 520 grains one inch stretched 
of an inch; elasticity, entire; tenacity, broke with 620 grains; intermediate fibres, 
és 
discolored. 
In one tuft the hairs were held together, at their posterior extremity, by small portions 
of decayed scalp, and a confused mass of young hairs, fibrils, vessels, and minute pieces 
of a feather. The diameter of the young hairs, fibrils and vessels, vary from 73!;5 to g5\yo, 
and smaller; one portion of feather measured, in length, 4, and in diameter, ¢}; of an 
inch. 
A thin piece of scalp, which is rendered transparent, is composed of several layers of 
various thicknesses, and several shades of yellowish-brown color. It has, imbedded in it, 
young hairs, fibres, fibrils, and minute objects resembling the scales of the lepisma saccha- 
rina; one of these is in length, ;3;, and in diameter, ;4, of an inch, and is marked 
longitudinally with minute parallel lines. 
* Grains. Stretched. Elasticity. 
170 at entire. 
90 
370 pee ee 
20 
yf 3 “ec 
470 ae 
820 broke 
