_IRON AND CHROME TANNAGES._
Iron tannages -- Chrome tannages -- Chemistry of chromium compounds --
Knapp’s method of chrome tannage -- Cavallin -- Swan -- Heinzerling --
Hummel’s improvement -- Schultz’s method -- Theory of the two-bath
process -- Practical management of the two-bath process -- Dennis’s
chrome tanning liquor -- Procter’s liquors -- Theory of basic process
-- Practical use of basic liquors -- Washing and neutralisation --
Effect of sulphur on chrome leather -- Bluebacking -- Fat-liquoring --
Dyeing of chrome leather -- Glazing and finishing PAGE 198