CHAPTER V.

RECTIFICATION.

General principles of "fractionation." Old form of rectifying still. Simple fractionating apparatus. "Vulcan" rectifier. Barbet's twin column rectifier. Guillaume's "Agricultural" rectifying apparatus. Rectifying by filtration. 82

MALTING.

The best barley to use. Washing. Steeping. Germinating. The "wet couch." The "floors." "Long malt." Drying. Grinding and crushing. 103