[D] From two Greek words,--[Greek: kalos], _kalos_, beauty, and [Greek: sthenos], _sthenos_, strength, being the union of both. The writer is now preparing for the press, an improved system, of her own invention, which, in _some_ of its parts, has been successfully introduced into several female seminaries, with advantage. This plan combines singing with a great variety of amusing and graceful evolutions, designed to promote both health and easy manners. [E] This work, which has gone through numerous editions, and been received by the public with great favour, forms No. lxxxv. of the "Family Library," and No. lvii. of the "School District Library," issued by the publishers of this volume. It is abundantly illustrated by engravings, and has been extensively introduced as a school text-book. CHAPTER IV. ON DOMESTIC ECONOMY AS A BRANCH OF STUDY. The greatest impediment to making Domestic Economy a branch of study, is, the fact, that neither parents nor teachers realize the importance, or the practicability of constituting it a regular part of school education. It is with reference to this, that the first aim of the writer will be, to point out some of the reasons for introducing Domestic Economy as a branch of female education, to be studied at school. The first reason, is, that there is no period, in a young lady's life, when she will not find such knowledge useful to herself and to others. The state of domestic service, in this Country, is so precarious, that there is scarcely a family, in the free States, of whom it can be affirmed, that neither sickness, discontent, nor love of change, will deprive them of all their domestics, so that every female member of the family will be required to lend some aid, in providing food and the conveniences of living; and the better she is qualified to render it, the happier she will be, and the more she will contribute to the enjoyment of others. A second reason, is, that every young lady, at the close of her schooldays, and even before they are closed, is liable to be placed in a situation, in which she will need to do, herself, or to teach others to do, all the various processes and duties detailed in this work. That this may be more fully realized, the writer will detail some instances, which have come under her own observation. The eldest daughter of a family returned from school, on a visit, at sixteen years of age. Before her vacation had closed, her mother was laid in the grave; and such were her father's circumstances, that she was obliged to assume the cares and duties of her lost parent. The care of an infant, the management of young children, the superintendence of domestics, the charge of family expenses, the responsibility of entertaining company, and the many other cares of the family state, all at once came upon this young and inexperienced schoolgirl.