Compendium of Drawing. Various authors. Two volumes, 410 and 477 pp., 9 £ x 6 3/4. $5.00 or $3.00 for single volume. American School of Correspondence, Chicago, 111. As might be expected of any book made up of writings by several authors upon different kinds of work, there is a lack of even and progressive treatment of the subjects, but even with this disadvantage, ;he scope of the two volumes is so wide and the several parts so excellently and comprehensively presented, that one can easily overlook minor matters. As desk books for teachers of manual training, they would be of special value. To mechanics or others who find it desirrble to have a working knowledge of the leading branches of drawing, these books would be invaluable. In fact, they are probably the most liberal value for the price of any books to be had upon this subject. Space does not permit of detail mention of the eight branches of work covered. The illustrations are numerous and well done.

Lessons in Ppysics. Lothrop D. Higgins, Cloth. 379 pp. 71/2|x5. 90 cents. Ginn & Co., Boston. A course in Physics without laboratory work is very much like "Hamlet" without the chief actor, nevertheless, it is an unfortunate fact that numerous schools in this country are well nigh destitute of even the simplest apparatus for experimental work, and instruction in this most important study must be dependent, therefore, solely on what can be given with the aid of a text book. For such schools, this book is particu-larly well adapted, as principles are explained by references to common or familiar phenomena, the physical manifestations most commonly met in our daily life being used as illustrations wherever possible. The author has also used care in the selection of words, technical words being defined, and a glossary gives further explanations. The illustrations number 233.

Mechanics, Molecular Physics and Heat. Robert Andrews Millikan. 244 pp. 8 £ x 5 £. $1.50. Ginn & Co., Boston. The close relation which should exist between class-room and laboratory is clearly appreciated by the author, who presents in this combined text-book and laboratory manual, a twelve weeks college course in which principles are thoroughly and logically presented, and the laboratory work arranged in close accord therewith. An especial effort has also been made to present Physics as "a science of exact measurement;." The latter feature necessitates carefully designed and well made special apparatus, which should, however, be within the means and form a part of the equipment of the colleges which would find this book suitable for use. The central idea has been to present a course in compact form which would teach thoroughly a few fundamental principles, and in this, has been particularly successful. Fifteen tables and 126 illustrations

Continued on page 168.