PROFESSOR OF CHEMISTRY, PHARMACY, MINERALOGY AND GEOLOGY. IN TWO VOLUMES. · VOLUME I. NEW HAVEN: PRINTED AND PUBLISHED BY HEZEKIAH HOWE. 1830. ********* * L. S. DISTRICT OF CONNECTICUT, ss. BE IT REMEMBERED, That on the eighteenth day of February in the fifty fourth year of the Independence of the United States of America, BENJAMIN SILLIMAN, of the said District, hath deposited in this ********* office the title of a Book, the right whereof he claims as Author in the words following, to wit: "Elements of Chemistry, in the order of the lectures given in Yale College. By Benjamin Silliman, Professor of Chemistry, Pharmacy, Mineralogy and Geology. In two volumes." In conformity to the Act of Congress of the United States, entitled, "An Act for the encouragement of learning, by securing the copies of Maps, Charts, and Books, to the authors and proprietors of such copies, during the times therein mentioned." And also to the Act, entitled, "An Act supplementary to an Act, entitled, 'An Act for the encouragement of learning, by securing the copies of Maps, Charts, and Books, to the Authors and Proprietors of such copies during the times therein mentioned,' and extending the benefits thereof to the arts of designing, engraving, and etching historical and other prints." CHARLES A. INGERSOLL, Clerk of the District of Connecticut. A true copy of Record, examined and sealed by me, Clerk of the District of Connecticut. PREFACE. THE object of this work is to present the science of Chemistry in the most intelligible form, to those who are learning its elements; and for the convenience of the classes in Yale College, the topics are arranged in the order in which they are now discussed, in the lectures given in that Institution. As the Medical Class constitutes a part of the audience, the most important pharmaceutical preparations, and leading uses of such substances as belong both to the Materia Medica, and to Chemistry, are briefly mentioned; and in general, throughout the work, practical facts are interwoven with scientific principles. The attempt has been made, to unite copiousness with condensation; perspicuity with brevity; and a lucid order, and due connexion of subordinate parts, with a general unity of design. By numerals* and letters, the topics have been digested under appropriate heads; and by the use of large and small capitals, and italics, the writer's impression, as to the relative importance of the leading facts and propositions, has been indicated. It is supposed that these mechanical helps, not novel indeed, but in this work, more extensively employed than usual, may facilitate the progress of the student, by enabling him to take, at pleasure, a more general, a more particular, or a detailed review; and the same facility is, of course, presented to the instructor. Exact accounts of processes and manipulations have been given; and Dr. Hare, having kindly permitted the introduction of the cuts,† from his Compendium, his own language, sometimes abridged, has been generally employed in the descriptions of his figures. The valuable illustrations, thus derived from his liberality, render it unnecessary to apologize for the frequent use of his name. ical Adopted, to some extent, by Dr. F. Bache, in his System of Chemistry for Med- + The more complex figures have been omitted. |