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Elements of food engineering
326
BOOK NOTES
energy levels of rotating molecules and omits discussion of electronic hyperfine structure and paramagnetic materials. Of the 112 pages of text, 86 are devoted to theory and 26 to experiment. Theory and experiment join two diverse fields: atomic physics and microwave electronics. The experimental portion seems slightly abbreviated and does not clearly indicate how the data should be treated. This may be the result of trying to keep the book within the limits of the Methuen Monographs.
BOOK FIBRE SCIENCE, edited by J. M. Preston. Second edition, 421 pages, diagrams, 15 × 22 cm. Manchester (England), The Textile Institute, 1953. Price: $6.00 (nonmembers); $5.00 (members). The first edition of this book was based on a series of eighteen lectures delivered at the College of Technology, Manchester, in the first half of 1947. The revision for this second edition has involved both omissions and additions, the net effect on the size of the book being an increase of about twentyfive per cent. The chemistry of the synthetic fibers and related macromolecules is treated at length. The finishing and dyeing of both natural and synthetic textile fibers is discussed in terms of the chemistry involved; but the technological details of these processes are outside the scope of this work. Its central theme is the explanation of the properties of fibers on the basis of their chemical composition and physical structure, with a view to stimulating further investigation of the many unsolved problems in this field. ALTERNATING CURRENT MACftlNES, by A. F. Puchstein, T. C. Lloyd and A. G. Conrad. Third edition, 721 pages, diagrams, 16 × 24 cm. New York, John Wiley & Sons, Inc., 1954. Price, $8.50. This new edition of the well-known text by Puchstein and Lloyd is about one-fifth larger than the second edition, but the arrangement is about the same. Changes have been made in the mode of presentation of some of the involved exp!a.nations. New
[J. F. I.
In microwave spectroscopy, one studies absorption, spectra of centimeter waves in various substances. Transitions between rotational energy levels require quanta having wavelengths in this centimeter range. Some knowledge of quantum mechanics is needed for an understanding of the theoretical sections of this book. It is a very compact and useful introduction to microwave spectroscopy. Included are an excellent bibliography, several appendices and a subject index. LEONARDMULDAWER
NOTES material concerns adjustable-speed drives, rectifiers, and self-synchronous machines. RAW COTTON PRODUCTION AND MARKETING, edited by A. F. W. Coulson. Volume I of Manual of Cotton Spinning. 222 pages, diagrams, 14 X 22 cm. Manchester (England), The Textile Institute, 1954. Price, $1.75. This is the first of a series of seven volumes to be published by The Textile Institute at intervals over the next few years. All phases of the subject will be treated in. this series, so that future technologists in the textile industry may use it as a basic text. This first volume consists of three sections entitled "The History and Structure of the Cotton Industry," "The Cotton Crop," and "Marketing Processes."
ELEMENTS OF FOOD ENGINEERING, Volume 3 Unit Operations 2, by Milton E. Parker, Ellery H. Harvey, and the late E. S. Stateler. 241 pages, illustrations and charts, 16 x 24 cm. N e w York, Reinhold Publishing Corp., 1954. Price, $6.75. This volume completes a monograph on food engineering by continuing the discus.sion of unit operations started in Volume 2. Its six chapters treat evaporating, distilling, dehydrating solid foods, drying liquid foods, quality control, regulatior~ of processes, coating and decorating, forming, packaging materials, packaging methods, and testing procedures for packaged products. The treatment in general is thorough in a qualitative manner; but aerosol packaging is given only passing mention and packaging for automatic vending machines is not discussed.
BOOK NOTES
energy levels of rotating molecules and omits discussion of electronic hyperfine structure and paramagnetic materials. Of the 112 pages of text, 86 are devoted to theory and 26 to experiment. Theory and experiment join two diverse fields: atomic physics and microwave electronics. The experimental portion seems slightly abbreviated and does not clearly indicate how the data should be treated. This may be the result of trying to keep the book within the limits of the Methuen Monographs.
BOOK FIBRE SCIENCE, edited by J. M. Preston. Second edition, 421 pages, diagrams, 15 × 22 cm. Manchester (England), The Textile Institute, 1953. Price: $6.00 (nonmembers); $5.00 (members). The first edition of this book was based on a series of eighteen lectures delivered at the College of Technology, Manchester, in the first half of 1947. The revision for this second edition has involved both omissions and additions, the net effect on the size of the book being an increase of about twentyfive per cent. The chemistry of the synthetic fibers and related macromolecules is treated at length. The finishing and dyeing of both natural and synthetic textile fibers is discussed in terms of the chemistry involved; but the technological details of these processes are outside the scope of this work. Its central theme is the explanation of the properties of fibers on the basis of their chemical composition and physical structure, with a view to stimulating further investigation of the many unsolved problems in this field. ALTERNATING CURRENT MACftlNES, by A. F. Puchstein, T. C. Lloyd and A. G. Conrad. Third edition, 721 pages, diagrams, 16 × 24 cm. New York, John Wiley & Sons, Inc., 1954. Price, $8.50. This new edition of the well-known text by Puchstein and Lloyd is about one-fifth larger than the second edition, but the arrangement is about the same. Changes have been made in the mode of presentation of some of the involved exp!a.nations. New
[J. F. I.
In microwave spectroscopy, one studies absorption, spectra of centimeter waves in various substances. Transitions between rotational energy levels require quanta having wavelengths in this centimeter range. Some knowledge of quantum mechanics is needed for an understanding of the theoretical sections of this book. It is a very compact and useful introduction to microwave spectroscopy. Included are an excellent bibliography, several appendices and a subject index. LEONARDMULDAWER
NOTES material concerns adjustable-speed drives, rectifiers, and self-synchronous machines. RAW COTTON PRODUCTION AND MARKETING, edited by A. F. W. Coulson. Volume I of Manual of Cotton Spinning. 222 pages, diagrams, 14 X 22 cm. Manchester (England), The Textile Institute, 1954. Price, $1.75. This is the first of a series of seven volumes to be published by The Textile Institute at intervals over the next few years. All phases of the subject will be treated in. this series, so that future technologists in the textile industry may use it as a basic text. This first volume consists of three sections entitled "The History and Structure of the Cotton Industry," "The Cotton Crop," and "Marketing Processes."
ELEMENTS OF FOOD ENGINEERING, Volume 3 Unit Operations 2, by Milton E. Parker, Ellery H. Harvey, and the late E. S. Stateler. 241 pages, illustrations and charts, 16 x 24 cm. N e w York, Reinhold Publishing Corp., 1954. Price, $6.75. This volume completes a monograph on food engineering by continuing the discus.sion of unit operations started in Volume 2. Its six chapters treat evaporating, distilling, dehydrating solid foods, drying liquid foods, quality control, regulatior~ of processes, coating and decorating, forming, packaging materials, packaging methods, and testing procedures for packaged products. The treatment in general is thorough in a qualitative manner; but aerosol packaging is given only passing mention and packaging for automatic vending machines is not discussed.