i OR, A TREATISE ON PILE. 75 
transversely by lines still darker; intermediate fibres, slightly colored; a coloring matter 
also at other times in the centre, interrupted. 
Trial with the Trichometer of one inch of an Oval Hair, April 1st, 1849. 
With 270 grains it stretched 1, of an inch, elasticity entire. 
ce 330 ve oe “y ce ce a3 
(a3 390 ce (z3 qey ce “ec (a3 
6 440 66 ‘6 = be “ “ 
‘ 450 3 ‘“ oe “ BC “ 
‘“ 470 6“ 6 a5 & 6 “ 
ce A480 “e “ce 37 “ee a3 ce 
oe 506 “ee ce 30 ce ‘ ce 
cc 520 “6 oe 16 oe ce “ec 
GB) WaysK0) | es ut i ot HC minus shy 
66 540 6“ c 13 3 a3 a3 as 
6s 550 és “ 13 “cs ‘“ «ce aty 
ae 570 oe ce 14 ee “ce “ee 30 
66 580 6c ce 19 6 ce te ae 
“6 600 “cc ce 20 6c “ 73 afr 
3 610 ve oe 23 ve ee oe 50 
“ 620 +6 6“ 24 ¢ 73 ce 10 
be 630 66 6b 23 “ec “cc “6 14 
(73 650 oe “ee 28 “se ‘ ce 13 
6c 660 66 6c 30 bs 6c 13 
6c 670 ve 6é 34 ‘ oc “c i : 
66 730 66 3 38 “é “6 a3 16 
6c 740 ce 6 35° 6“ 6c ‘ ii 
6c 760 6c éc 36 6 ‘ 6c 19 
[780° < 29 and broke. 
Fracture fibrous. 
One inch of another hair from this specimen, which was cylindrical, was tried with the 
Trichometer immediately afterwards, with the following result: 
With 100 grains it stretched 5 of an inch, elasticity entire. 
9 
cc ‘ “6 “cc pie a3 cb “ec 
300 2 
‘6 400 66 6c fy GE ‘6 “ 
oe ee “ec 4 oe oe se 
550 4 
a4 6 6c 5 “6 ‘ ‘ 
650 30 ‘ ‘ 
oe 700 ce ce a0 ce (a3 ee 
74 74 6c 10 cc a4 1 a J 
750 48 minus 4) 
cc ‘ 66 “cc 15 “ “ 66 4 
800 90 90 
cc 850 66 (74 28 “cc “ce ““ oa 
73 ¢ 25 ‘ ( 
S00 -< : 26 é é is ies 
19 
