THE "HOW-TO-DO-IT" BOOKS

  CARPENTRY FOR BOYS

  A book which treats, in a most practical and fascinating manner allsubjects pertaining to the "King of Trades"; showing the care and use oftools; drawing; designing, and the laying out of work; the principlesinvolved in the building of various kinds of structures, and therudiments of architecture. It contains over two hundred and fiftyillustrations made especially for this work, and includes also acomplete glossary of the technical terms used in the art. The mostcomprehensive volume on this subject ever published for boys.

  ELECTRICITY FOR BOYS

  The author has adopted the unique plan of setting forth the fundamentalprinciples in each phase of the science, and practically applying thework in the successive stages. It shows how the knowledge has beendeveloped, and the reasons for the various phenomena, without usingtechnical words so as to bring it within the compass of every boy. Ithas a complete glossary of terms, and is illustrated with two hundredoriginal drawings.

  PRACTICAL MECHANICS FOR BOYS

  This book takes the beginner through a comprehensive series of practicalshop work, in which the uses of tools, and the structure and handling ofshop machinery are set forth; how they are utilized to perform the work,and the manner in which all dimensional work is carried out. Everysubject is illustrated, and model building explained. It contains aglossary which comprises a new system of cross references, a featurethat will prove a welcome departure in explaining subjects. Fullyillustrated.

  _Price 60 cents per volume_

  THE NEW YORK BOOK COMPANY 147 FOURTH AVENUE NEW YORK