82 TRICIIOLOGIA MAMMALIUM; 



Ductility, Elasticity and Tenacity. One inch of filament, the Barometer, Thermometer 

 and Dew-point, being as above stated, 



With 160 grains stretched -fa of an inch, elasticity entire. 

 " 470 " " g\ 



" 570 " " -3$ 



" 670 " " -fo " " 



" 820 " " Jfr " " 



" 870 " " -fo 



" 920 " " J-4 " " 



" 970 " " i " minus -^ of an inch. 



"1,020 " " i| " ^ 



" 1,070 " " f| " " |-a 



" 1,220 " it broke. 



Fracture, splintery; button, hooked, knotted, and otherwise distorted; one of them, 

 besides the main body, had two others of smaller dimensions; sheath, large, white, opaque, 

 and sometimes divided; follicle, have none to examine; shaft, uneven, bulged, flattened 

 and sunken; cortex, striated, striae sometimes intersecting at right angles; intermediate 

 fibres, white and lustrous ; diameter of one of the smallest, ^ -Jj-o f an i n h J central 

 canal, with detached portions of plumbeous colored spires or threads of coloring matter ; 

 the greatest dimensions of a mass, ^-gW of an inch ; the threads too minute for measure- 

 ment ; apex, pointed, furcated, or bushy; disks, plumbeous color throughout. 



No. 4. Examination and Description of the Pile of the Head of the Albino Boy, of the 

 Hack race, of Gape May, New Jersey, aged 12 years. Specimen presented by Mrs. Gar- 

 wood. His father is black and his mother a dark mulatto; they have five children, of 

 whom three, viz : two males and a female, are Albinos, the other two are black and have 

 negroes' wool. Length, (natural,) 2 inches and -j^ ; shape, eccentrically elliptical with a 

 diameter of ^ g- by -^| T of an inch, tapering ; for example, a young filament measuring 2 T ^ 

 inches, had, as its inferior extremity, ^y, in the centre | T , and at the apex y^Vir f an 

 inch ; color, dirty white ; lustre, none ; direction, frizzled and spirally curled ; diameter 

 of the curls, Jj- of an inch; inclination, we have no means of ascertaining with certainty, 

 but are informed that it is right-angled with the epidermis. 



Ductility, Elasticity and Tenacity. One inch of filament, the Barometer, Thermometer 

 and Dew-point being as before stated, 



With 160 grains it stretched ^ of an inch, elasticity entire. 

 < 220 " " 2 " " " 



" 270 " " JL " " " 



" 370 " " ^ " " " 



" 420 " " 5 " " " 



" 470 " " .g. " minus -^ 



" 52 " " U " " A 



" 570 " " |- " " 1|- 



" 620 " " o- ' S-A 



