With these elements one can arrive at a solution of some of the
questions we are discussing.
We give below, according to this method, a table showing the composition
of the different leathers exhibited at the Paris Exposition of 1878.
They are the results of careful research, and we have based our work
upon them:
Matter Soluble Fixed
in Air Tannin
| |
| Matter Solu- |
| ble in Alcohol |
| | |
Moisture | | Gelatine |
--+-- --+-- --+-- --+-- --+--
Steer hide, hemlock tanned (heavy leather) 10.95 4.15 19.77 39.1 26.03
Sheepskins, sumac " (Hungarian) 10.8 10.3 12.1 40.3 26.5
Finished calf, pine bark tanned (Hungarian) 11.2 1.7 7.4 41.6 38.1
Steer hide, quebracho tanned (heavy leather) 11.7 1.6 11.2 43.1 32.4
" " chestnut " " " 13.5 0.29 1.99 45.46 38.76
Finished calfskins,
oak tanned (Chateau Renault) 12.4 0.33 3.59 46.74 36.94
Steer hide, laurel tanned (heavy leather) 12.
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