OR, A TREATISE ON PILE. 81 
matter, which is greenish white, opaque and interrupted ; when the cortex and intermediate 
fibres are artificially made transparent, the coloring matter is seen collected in spires and 
tangled threads of a plumbeous color, interrupted by vacant spaces in the canal; apex, 
very pointed—none furcated ; disks or transverse sections, plumbeous colored, with some- 
times a minute central speck, which is white and opaque. 
No. 2. Examination and Description of the Pile of the head of the Albino of the 
white species, James Spencer, Esq., of Philadelphia, aged tiventy-one years, whose father 
had brown, and whose mother had black hair.—Specimen presented by himself, in 1849. 
Length, (artificial,) 2} inches; shape, oval, 775; by ,3,; of an inch; tapering; for 
example, a young filament, 1 inch long. measured, at its lower extremity, 5 
centre, siz, and at the apex, 55, of an inch; color, white, with a very sligh 
straw color; lustre, considerable; direction, flowing. 
in the 
9? 
1 
7 
t tinge of 
Ductility, Elasticity and Tenacity —The Barometer, Thermometer and Dew-point being 
the same as before stated, one inch of filament 
With 170 grains stretched 4, of an inch, elasticity entire when the weight was removed. 
90 
“ce oe oe Am ce ce ce ae 
400 2s 
6“ 520 “ec “ec iy “co “cc ce “6 
a 6c “ce 4 ce 73 ce a 
670 EE 
“cc FOR 6c (4 10 “c CO. ints qe 4 
e793) a0 minus 30 
“ 970 it broke. 
Fracture, abrupt, a small portion of the cortex being abraded ; button, sheath and follicle, 
none ; shaft, uneven, bulged, flattened and sunken; cortex, transversely striated the length 
of the shaft, the stri# numerous; intermediate fibres—having artificially removed the 
cortex, the intermediate fibres are exposed to view; they are divided transversely into 
sections or nodes, of the following lengths, viz: ;4-, 74, and z1, of an inch; the inter- 
stices are bands which are originally white, but which, by exposure to the atmosphere, 
turn dark colored; central canal, upon artificially rendering the cortex and intermediate 
fibres transparent, the coloring matter is seen consisting of portions of unequal sizes of 
spires or threads, of a plumbeous color; the mass has a diameter of 5;5,5 of an inch, but 
the threads are too small for measurement; disks or transverse sections, show a plumbeous 
color, either continuous or with a minute central speck. 
No.3 Examination and Description of the Pile of the head of the Albino Boy, of the 
black race, ten years old, both of whose parents are black.—Specimen presented by Doctor 
Nott, of Mobile, Alabama. 
Length, (natural,) 1 inch and two-tenths ; shape, eccentrically elliptical; diameter, 534 
by 45 of an inch; tapering; for instance, a young filament, measuring one inch and two- 
tenths, had the following diameters, viz: at the lower extremity, ;4;, in the centre, 53, 
and at the apex, ;,4, of an inch; color, dirty, reddish-white; lustre, none; direction, 
erisped and frizzled, and spirally curled; diameter of the curls, 2, of an inch; inclina- 
tion, we had no means of ascertaining. 
