Chimneys, Boilers, etc.; Steam Engines--Grinding and Trituration of
Tanning Substances: Cutting up Bark; Grinding Bark; The Grinding of
Tan Woods; Powdering Fruit, Galls and Grains; Notes on the Grinding
of Bark--Manufacture of Sole Leather: Soaking; Sweating and Unhairing;
Plumping and Colouring; Handling; Tanning; Tanning Elephants' Hides;
Drying; Striking or Pinning--Manufacture of Dressing Leather: Soaking;
Depilation; New Processes for the Depilation of Skins; Tanning; Cow
Hides; Horse Hides; Goat Skins; Manufacture of Split Hides--On Various
Methods of Tanning: Mechanical Methods; Physical Methods; Chemical
Methods; Tanning with Extracts--Quantity and Quality; Quantity; Net
Cost; Quality of Leather--Various Manipulations of Tanned Leather:
Second Tanning; Grease Stains; Bleaching Leather; Waterproofing
Leather; Weighting Tanned Leather; Preservation of Leather--Tanning
Various Skins.