To obviate this condition, or to at least neutralize its effects somewhat, is one of the principal reasons for introducing Domestic Science into the Public School curriculum; a science which relates so closely to the daily life that it cannot be left to an act of memory; where cause and effect are so palpable that the pupil may readily arrive at an individual conclusion. The aim of this text-book is to assist the pupil in acquiring a knowledge of the fundamental principles of correct living, to co-ordinate the regular school studies so as to make a practical use of knowledge already acquired. Arithmetic plays an important part in the arranging of weights and measures, in the study of the analysis and relative value of various kinds of food, in estimating the cost of manufactured products in proportion to their market value, in the purchase of food material, etc. History and geography are closely allied to the study of the diet and customs of the different countries, with their variety of climate and products. Physiology and temperance principles permeate the whole course of study. In addition to these are the direct lessons, provided by the practice work, in neatness, promptness and cleanliness. It will therefore be necessary to have a wide general knowledge before entering upon a course in Domestic Science. Owing to the limited time allowed for this course in the Public Schools, it will be impossible to teach more than a few of the first principles governing each department of the work, viz., a knowledge of the constituent parts of the human body; the classification of food and the relation of each class to the sustenance and repair of the body; simple recipes illustrating the most wholesome and economical methods of preparing the various kinds of food; the science of nutrition, economy and hygiene; general hints on household management, laundry work, and care of the sick. To enter more fully into the chemistry of food, bacteriology, etc., would tend to cause confusion in the mind of the average school girl, and possibly create a distaste for knowledge containing so much abstract matter.