Excerpt from Elementary Household Chemistry: An Introductory Textbook for Students of Home Economics

The recent development of courses of instruction in Home Economics in America has created a field for textbooks pre pared to meet the special needs of this new class of students. The course in chemistry presented in this book is the outcome of several years' experience with a class of students, the ma jority of whom have had no previous instruction in the science. The text has been written with the needs of such students primarily in mind, but the hope is entertained that, with suit able omissions, it may also be found useful in the many insti tutions in which the student of household chemistry approaches the subject after a preliminary training in general chemistry. The principle which has been kept constantly in mind is to introduce the applications of chemistry to household affairs as early and as often as possible and to present only such por tions of the subject matter of theoretical chemistry as is essential to the comprehension of these applications. In this way the student's interest is enlisted and maintained a most important consideration in the teaching of an applied science.

The author's thanks are due to the many friends who have taken an interest in the preparation of this volume and more particularly to Professor John Bonsall Porter of mcgill Uni versity; Mr. F. O. Farey, of the Robert W. Hunt Company, Montreal and Mr. Peter H. Walsh, Chemist of the Dominion Textile Company, Magog, Quebec, for suggestions in regard to the chapters on fuels, soaps, and textiles, respectively; to Miss Katharine A. Fisher, Head of the Household Science Department, Macdonald College, for the table of weights of one cupful of various food materials; and to Professor H. C. Sherman, of Columbia University, for numerous suggestions.

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