OR, A TREATISE ON PILE. 61 
No. 3. Examination and Description of hair from a skull from Arica, Peru, South 
America.—Specimen presented by Prof. S. G. Morton, M. D., of Philadelphia. 
General Appearance, that of dead, dried, black hair; length, (artificial,) 3 inches; 
shape, cylindrical; diameter, from ;4, to z}; of an inch, i.e. of different filaments ; color, 
very dark brown; no lustre; direction, straight and lank; inclination, unknown; ductility, 
with 420 grains one inch stretched ,°; of an inch; elasticity, minus ,);; tenacity, broke 
with 470 grains; button, spindle-shaped, dark colored; length, ;4,; diameter, 5547; 
while that of the shaft is ;1, of an inch; sheath, none; follicle, none; shaft—cortex, dark 
colored, the scales easily disengaged; intermediate fibres, white, translucent; diameter, 
from 555 to zs of an inch; easily separated by crushing the hair; apex, pointed and 
abrupt; one filament has a remarkable natural bifurcation; disks, uniformly colored; no 
central dot. 
No. 4. Examination and Description of a portion of the scalp and hair from a skull 
from Pisco, Peru, South America.—Specimen presented by Prof. 8S. G. Morton, M. D., of 
Philadelphia. 
General Appearance.—The scalp is of a dark brown color, and resembles ancient tanned 
leather. It divides into layers, viz: layer immediately beneath that in which the hair is 
imbedded, and that in which the hair is imbedded. The arrangement is in tufts, 
with interstices. Length, (artificial,) 32 inches; shape, cylindrical; diameter, ;1, of 
an inch; color, dark brown, inclining to black; no lustre; direction, straight and lank ; 
inclination, at an acute angle with the epidermis; ductility, with 370 grains one inch 
stretched 42 of an inch; elasticity, with 370 grains one inch Jost 28 of its length ; 
tenacity, broke with 420 grains*; button, spindle, club and crook-shaped ; sheath, none ; 
follicle, none ; shaft—cortex easily fractured ; intermediate fibres, white, translucent ; apex, 
abrupt and pointed; the point minute; disk, with a small central spot. 
No. 5. Examination and Description of hair and portions of scalp from a skull 
of an Aztec, found in Mexico, North America.—Specimen presented by Prof. S. G. 
Morton, M. D., of Philadelphia, from a skull in the Academy of Natural Science, of 
Philadelphia. 
General Appearance.—Of the scalp, that of dandruff; length, (artificial,) 3 inches ; shape, 
cylindrical; diameter, ;}; of an inch; color, dark brown; no lustre; direction, straight 
and lank; inclination, unknown; ductility, with 470 grains one inch stretched ,%; of an 
inch ; elasticity—when the weight was removed, it had lost none of its elasticity ; 
* Grains. Stretched. Elasticity. 
170 as entire. 
225 ae “ 
270 3% minus 43 
€ 37 ‘ 23 
320 50 : v0 
370 42 “ 28 
oil 90 90 
420 broke. 
