In presenting this work to the public I wish to express my thanks to Sir Philip Magnus and to Mr. George Kicks, B.Sc, for the advice which these pioneers of Manual Instruction in England kindly gave me, and to the Joint Committee of the School Board for London, the City and Guilds of London Technical Institute, and the Worshipful Company of Drapers, for the scope allowed me for experimenting in their classes during the last four years; also to Mr. E. J. Brown, of Oldridge Road Board School, to whom I am much indebted for the photographs of tool operations.

The book, it is hoped, will be useful to teachers, and is intended to assist those preparing for the examinations of the City and Guilds of London Technical Institute.

S. Barter. London : April 1892.