In venturing to offer to the public, and more particularly to the female sex, an Introduction to Chemistry, the author, herself a woman, conceives that some explanation may be required; and she feels it the more necessary to apologise for the present undertaking, as her knowledge of the subject is but recent, and as she can have no real claims to the title of chemist. On attending for the first time... more...

INTRODUCTORY To the following Treatise. O give the Reader an account, Why the following Treatise is suffer’d to pass abroad so maim’d and imperfect, I must inform him that ’tis now long since, that to gratify an ingenious Gentleman, I set down some of the Reasons that kept me from fully acquiescing either in the Peripatetical, or in the Chymical Doctrine, of the Material Principles of mixt Bodies.... more...

INTRODUCTION. The sacred formulas here given are selected from a collection of about six hundred, obtained on the Cherokee reservation in North Carolina in 1887 and 1888, and covering every subject pertaining to the daily life and thought of the Indian, including medicine, love, hunting, fishing, war, self-protection, destruction of enemies, witchcraft, the crops, the council, the ball play, etc., and,... more...

PART I INTRODUCTION SUBDIVISIONS OF ANALYTICAL CHEMISTRY A complete chemical analysis of a body of unknown composition involves the recognition of its component parts by the methods of !qualitative analysis!, and the determination of the proportions in which these components are present by the processes of !quantitative analysis!. A preliminary qualitative examination is generally indispensable, if... more...

Hoffman, in one of his observations, gives the history of a powder called magnesia alba, which had long been used and esteemed as a mild and tasteless purgative; but the method of preparing it was not generally known before he made it public. It was originally obtained from a liquor called the mother of nitre, which is produced in the following manner: Salt-petre is separated from the brine which first... more...

THE PREFACE. One reason for the present publication has been the favourable reception of those of my Observations on different kinds of air, which were published in the Philosophical Transactions for the year 1772, and the demand for them by persons who did not chuse, for the sake of those papers only, to purchase the whole volume in which they were contained. Another motive was the additions to my... more...

It is scarcely conceivable that anything pertaining to the development of chemical science in America would fail to interest its chemists. The response to the needs of the Nation in the last few years has shown how marvelously they wrought and the wonderful things which they brought to light. Yet in the long ago—in the days of which we only know by hearsay, and through desultory reading, there lived... more...

I. RULES OF THE GAME A GAME of chess is played by two opponents on a square board consisting of sixty-four White and Black squares arranged alternately. The forces on each side comprise sixteen units, namely a King, a Queen, two Rooks, two Bishops, two Knights, and eight Pawns. All units move according to different laws, and the difference in their mobility is the criterion of their relative value and... more...

CHAPTER I. INTRODUCTION. DESCRIPTION OF THE CHESS-BOARD AND MEN—ARRANGEMENT OF THE MEN—THE KING—THE QUEEN—THE ROOKS OR CASTLES—THE BISHOPS—THE KNIGHTS—AND THE PAWNS—THEIR MOVEMENTS, POWERS, METHOD OF CAPTURING AN ADVERSE MAN, ETC. DESCRIPTION OF THE CHESS-BOARD AND MEN. The game of Chess is played by two persons, each having at command a little army of sixteen men, upon a board divided... more...

The very high character of Mr Lavoisier as a chemical philosopher, and the great revolution which, in the opinion of many excellent chemists, he has effected in the theory of chemistry, has long made it much desired to have a connected account of his discoveries, and of the new theory he has founded upon the modern experiments written by himself. This is now accomplished by the publication of his... more...