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The boys' book of model aeroplanes
II0
BOOK REVIEWS.
[J. 1:. 1.
This is done in such a way t h a t no reader, however non-technical, should fear being lost in a maze of complex technicalities. Each subject is discussed in a systematic manner in clear and simple language. A large number of subjects are covered. They include industries dependent upon various chemicals such as soap making, the purification of water, sulphur, fertilizers, explosives, and carbon the producer of energy, etc. Chapters that may be classed as having particular appeal include the story of iron and steel, pottery and glass, dependence on chemistry by the farmer, the housewife, the physician, and the manufacturer. A new chapter added in this second edition is entitled " T h e Archw.ologists' Dependence on Chemistry." This chapter deals to a considerable extent with recent excavations at Corinth and at the Agora in Athens. The book is illustrated with diagrams and photographs throughout, adding materially to understanding and inspiration. In the appendix there is a list of references, divided into the various chapters of the book. The subject index in the back should be very useful and it gives an idea of the great breadth of coverage in the book. This book can be recommended to anyone as worthwhile. It is directed especially to the layman who cannot help but obtain a liberal knowledge of this great science. But the technical man can also derive much enjoyment and appreciation of many technical activities with which he may be only partly familiar. To all, it should provide inspiration to seek the truth. R. H. OPPERMANN. THE BOYS' BOOK OF MODEL AEROPI.ANES, by Francis A. Collins. 262 pages, plates, diagrams, 13 X I9.5 cms. New York, London, D. Appleton-Century Company, Inc., I936. Price $2.00. This is the third edition of a book that should delight the heart of every boy interested in aeronautics. Not only is it based on a fascinating story but it goes into sufficient practical theory to satisfy every boy as to the whys and wherefores of construction of various parts of the model aeroplane. Various designs are explained, selected beginners questions are answered, and curiosities of the air t h a t affect the performance of a model are treated on. There are also rules for conducting model aeroplane contests, constitution and by-laws of a model aeroplane club, and a dictionary of aeronautical terms included. The book is complete in every detail and is profusely illustrated with drawings and photographs. It is an invaluable how-to-do-it book for all devotees of modcl aeroplane building. R. H. ()I'PERMANN. THE CHEMISTRY OF NATURAL PRODUCTS RELATED TO PHENANTHRENE, by L. F. Fieser, Associate Professor of Chemistry, Harvard University. 358 pages, tables, illustrations, 15 X 23 cms. New York, Reinhold Publishing Corp., I936. Price $6.50. In one respect this book is remarkable, namely in the degree in which the literature has been covered even to the moment of going to press. Published on March 2ISt, the literature is reviewed to February Ist, i936, with the exception of a few papers, some of which are referred to by notes. About 45 per cent. of
BOOK REVIEWS.
[J. 1:. 1.
This is done in such a way t h a t no reader, however non-technical, should fear being lost in a maze of complex technicalities. Each subject is discussed in a systematic manner in clear and simple language. A large number of subjects are covered. They include industries dependent upon various chemicals such as soap making, the purification of water, sulphur, fertilizers, explosives, and carbon the producer of energy, etc. Chapters that may be classed as having particular appeal include the story of iron and steel, pottery and glass, dependence on chemistry by the farmer, the housewife, the physician, and the manufacturer. A new chapter added in this second edition is entitled " T h e Archw.ologists' Dependence on Chemistry." This chapter deals to a considerable extent with recent excavations at Corinth and at the Agora in Athens. The book is illustrated with diagrams and photographs throughout, adding materially to understanding and inspiration. In the appendix there is a list of references, divided into the various chapters of the book. The subject index in the back should be very useful and it gives an idea of the great breadth of coverage in the book. This book can be recommended to anyone as worthwhile. It is directed especially to the layman who cannot help but obtain a liberal knowledge of this great science. But the technical man can also derive much enjoyment and appreciation of many technical activities with which he may be only partly familiar. To all, it should provide inspiration to seek the truth. R. H. OPPERMANN. THE BOYS' BOOK OF MODEL AEROPI.ANES, by Francis A. Collins. 262 pages, plates, diagrams, 13 X I9.5 cms. New York, London, D. Appleton-Century Company, Inc., I936. Price $2.00. This is the third edition of a book that should delight the heart of every boy interested in aeronautics. Not only is it based on a fascinating story but it goes into sufficient practical theory to satisfy every boy as to the whys and wherefores of construction of various parts of the model aeroplane. Various designs are explained, selected beginners questions are answered, and curiosities of the air t h a t affect the performance of a model are treated on. There are also rules for conducting model aeroplane contests, constitution and by-laws of a model aeroplane club, and a dictionary of aeronautical terms included. The book is complete in every detail and is profusely illustrated with drawings and photographs. It is an invaluable how-to-do-it book for all devotees of modcl aeroplane building. R. H. ()I'PERMANN. THE CHEMISTRY OF NATURAL PRODUCTS RELATED TO PHENANTHRENE, by L. F. Fieser, Associate Professor of Chemistry, Harvard University. 358 pages, tables, illustrations, 15 X 23 cms. New York, Reinhold Publishing Corp., I936. Price $6.50. In one respect this book is remarkable, namely in the degree in which the literature has been covered even to the moment of going to press. Published on March 2ISt, the literature is reviewed to February Ist, i936, with the exception of a few papers, some of which are referred to by notes. About 45 per cent. of