Vol. 32 [no. 10] constitutes "Souvenir edition and year book for 1939."

Completely re-written with two new co-authors who provide expertise in physical chemistry and engineering, the Sixth Edition of this textbook/reference explores the entire scope of the ice cream industry, from the chemical, physical, engineering and biological principles of the production process, to the marketing and distribution of the finished product. This Sixth Edition builds on the strengths of previous editions with its coverage of the history, production and consumption, composition, ingredients, calculation and preparation of mixes, equipment, processing, freezing, hardening, storage, distribution, regulations, cleaning and sanitizing, safety, and quality of ice cream and related frozen desserts.

This edition of "Ice Cream" is a full revision of previous editions and includes an updating of the areas that have been affected by changes and new technolo gy. The ice cream industry has developed on the basis of an abundant economical supply of ingredients and is a high-volume, highly automated, modern, progressive, very competitive industry composed of large and small businesses manufacturing ice cream and related products. The industry un derwent a difficult period of adjusting to economic changes and to the es tablishment of product specifications and composition regulations. The latter area has now become more stabilized and the Frozen Desserts Definitions and Standards of Identity are now more clearly defined, as are ingredient and nutritional labeling specifications. The chapters that include basic information on ice cream technology remain for the most part unchanged in order to accommodate beginners in the industry and the smaller processors. In other chapters major revisions and the incorporation of new material have been made. Key classical references and information have been retained or added in order to keep intact those portions of the book which students have found most useful and helpful as reflected in my own teaching, research, and publications in the field of dairy science, and particularly in the field of ice cream production.

Ice Cream, 7th Edition focuses on the science and technology of frozen dessert production and quality. It explores the entire scope of the ice cream and frozen dessert industry, from the chemical, physical, engineering and biological principles of the production process to the distribution of the finished product. It is intended for industry personnel from large to small scale processors and suppliers to the industry and for teachers and students in dairy or food science or related disciplines. While it is technical in scope, it also covers much practical knowledge useful to anyone with an interest in frozen dessert production. World-wide production and consumption data, global regulations and, as appropriate, both SI and US units are provided, so as to ensure its relevance to the global frozen dessert industry. This edition has been completely revised from the previous edition, updating technical information on ingredients and equipment and providing the latest research results. Two new chapters on ice cream structure and shelf-life have been added, and much material has been rearranged to improve its presentation. Outstanding in its breadth, depth and coherence, Ice Cream, 7th Edition continues its long tradition as the definitive and authoritative resource for ice cream and frozen dessert producers.

Vol. 32 [no. 10] constitutes "Souvenir edition and year book for 1939."

This publication deals with taxonomy of the 14 species and varieties now known from the United States; all of these, for reasons stated later, are assigned to Pantomorus.