The Manufacture of Leather: Being a Description of All of the Processes for the Tanning and Tawing With Bark, Extracts, Chrome and All Modern Tannages in General Use. E-book. Formato PDF Charles Thomas David   -  Forgotten Books, 2017  - 

We are ever traveling onward, and while it may by some be considered that the duty of I 5 per cent. On hides and calf-skins might be an impediment, it can readily be overcome by our superior machinery and skill, and thus will we be able still to hold our foreign trade. While this industry has progressed from the simplest and most primitive to its present state, it is not yet perfect. The author would therefore admonish every manufacturer of leather to be on the lookout for all new improvements, and when found to be practicable to adopt them, as only in this way can he keep up-to-date, and thus be saved from being relegated to the rear. It is much easier to go backward than to go forward.