This section is from the book "Cassell's Cyclopaedia Of Mechanics", by Paul N. Hasluck. Also available from Amazon: Cassell's Cyclopaedia Of Mechanics.
An Hungarian goat's skin which has been cleaned, but has dried very stiff, may be softened by the following method. Well damp the skin on the flesh side and, when thoroughly soft, stretch it in all directions; then hang it up to dry in the shade. After an hour or so, take the skin down, give it a good shaking, and well rub it (similarly to washing clothes), then hang it up again, but by a different part to which it was previously hanged. After another hour or so, repeat the rubbing, shaking, etc.; then hang it up again. The more thoroughly the rubbing and shaking are done the softer the skin will be. When nearly dry, hand-rub the skin till dry, and it should be as soft as chamois leather.
 
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