29 JUNE 1912, Page 13

Cocoa : its Cultivation and Preparation. By W. H. Johnson,

F.L.S. (John Murray. 5s. not.)—One of the Imperial Institute handbooks. It is illustrated, and contains succinct directions for the various processes of cocoa-growing and marketing ; there are chapters on pruning, manuring, shading, harvesting, parasites, and diseases. The list of "animal pests" is engaging—" Man, deer, monkeys, squirrels, and rats," Deer gnaw the bark ; men wound the tree by careless pruning.