Repository: UIHistories Project: Board of Trustees Minutes - 1886 [PAGE 253]

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245 The relation between the closeness of the crimp and the fineness of the fibre is here apparent, and though there is some variation, it still appears to afford a tolerably fair indication of the fineness, at least the best at hand when a good microscope is not available. Further it appears from this table that the wools of the Boston market, as a whole, are somewhat longer and coarser than those of the Philadelphia market. The ultimate resistance in pounds per square inch and the modulus of elasticity seem to be higher in the Philadelphia grades than in the Boston grades, altogether indicating a generally better quality in the staple. Comparing the American with the German grades, the Philadelphia grades seem about as fine and strong, the modulus of elasticity possibly a little lower. With the explanations already given, however, these comparisons may easily be made by those interested, and we therefore submit the tables without further comment. Averages of all results for Commercial Grades.

BOSTON GBADES.

Length of flbre in inches No. of crimps per inch

Stretch perct.

FINENESS.

bl S "| X

oo

© CO

GRADES.

re

?1

II 18,279 20.575 14.656 18.57 21.769 21.502 13.981 18.858 21.115 19.746 57.057 20.713 22.87 24.076 20.823 28.212

m

II ^1 W

Fine unwashed F i n e from dead s h e e p Picklock XXX XX X B e t w e e n X and No. 1 No. 1 No. 2 Delaine fine Delaine m e d i u m Combing fine Combing m e d i u m •Combing c o a r s e Common New Mexico:

20 20 22 22 20 20 20 20 16 20 14 14 10

2.335 2.162 0.8611 2.300 1.835 0.7224 2.083 1.532 0.6031 2.063 1.567 0.6169 2.250 1.870 0.7368 2.156 2.0230.7964 4.625 2.118 0.8338 2.229 2.203 0.8673 2.814 2.9081.1448 3.375 2.084 0.8204 3.375 2.533 0.9972 3.917 2.526 0.9944 4.781 2.6261.0338 6.125 .3.420 1.3464 31.875 3.4311.3507 3.375 2.7761.0889

5.34 4.33 2.15 2.85 4.65 5.50 3.92 5.72 11.16 5.36 6.84 8.26 9.86 1«.60 15.32 13.49

27.30 32.40 32.85 31.85 22.30 28.80 14.85 12.60 24.05 24.55 25.93 21.45 22.15 30.75 26.70 24.00

IIIIIIIIIIIIII

PHILADELPHIA GRADES. Picklock b e s t Picklock fair Picklock m e d i u m Picklock low XXX good XXX e x t r a XXX low XX good XX clothing XX low X good X low Delaine fine Delaine very fine X a n d above X a n d above X a n d above 34 blood good X A combing 26 1.625 26 1.75 22 1.25 22 2.00 26 2.00 26 2.00 22 2.25 22 2.50 22 2.20 20 2.00 20 2.00 20 1.9375 20 2.125 20 2.50 20 2.625 22 2.00 22 2.458 20 2.025 14 2.75 14 3.4375 5.417 1.669 0.6570 1.658 0.6527 1.76 0,6929 1.435 0.5469 1.687 0.6641 1.494 0.5889 1.783 0.7019 1.655 0.6515 1.859 0.7318 1.736'0.6874 1.835 0.7224 1.932 0.7606 1.911 0.7523 1.924 0.9574 1.946 0.7661 2.133 0 8397 1.949 0.7673 1.983 0.7807 2.404!0.9464 2.3830.9381 3.50811.3810 3.00 4.60 4.67 3.05 4.23 3.44 5.06 3.70 5.03 5.67 5.23 5.05 5.03 5.95 7.22 5.98 4.86 5.60 10.37 9.66 20.79 30.75 31.50 27.10 22.55 21.40 27.60 25.65 22.25 25.25 23.50 21.40 18.45 18.40 32.50 29.25 29.70 34.20 24.10 29.65 24.10 30.50 17.232 26.78 24.122 23.699 23.781 24.658 25.466 21.66 23.235 30.102 24.851 21.646 22.037 25.717 30.505 21.03 20.47 22.786 36.143 27.218 27.03 19510 63418 33309 96222 27299 98142 22533 118900 26914 125770 27899 101080 28815 113343 24504 110130 26292 104126 34067 144970 28126 131430 24492 132750 24934 1.35510 29110 89570 34520 118020 23802 80141 23168 67743 25773 106981 40904 141170 30808 127830 30593 100300

Thousandths of inch. Centimillimetres.

75785 71873 50495 65954 110491 84500 106550 169394 99300 91033 74394 111837 116860 88616 88269 136148

X Fair