This publication is aimed at the people who are helping to make the Indian Tea Industry one of the largest in the world. It is not an academic treatise. But a practical, concise, detailed and handy guide book for everyone involved in tea, serving in various fields from plantation to manufacture. It is in essence a concentration of technical information available over a very broad and very scattered spectrum of sources. The Tocklai Encyclopaedia, the various Memoranda and “Two & a Bud”, are some of them. I would like to thank the Editorial Committee, the scientists at Tocklai and all others who took active interest in the publication. Particular thanks are due to Mr. J.P.F. Furst, who made this enormous research, collation and compilation possible. We hope that the publication will be of extensive use among tea-men all over.