BY THE SAME AUTHOR. THE NEW CHEMISTRY. Thirty-one Illustrations. Second Edition. With 5s. Being Vol. IX. of the International Scientific Series. For full particulars of which see list at end of Vol. 'The science it contains is popular science in the best sense of the The great ideas of modern chemistry are presented with singular clearness and with very varied illustration.'-LANCET. term. 'The book is a great absolute gain to scientific literature, and will be read with like profit by the student and by the man of ripe chemical knowledge, to whom it presents a complete picture of the present state of chemical theories.'-WESTMINSTER REVIEW. 'Mr. Cooke's style is clear, his matter weighty, and his method intelligible. He bases his theories on the law of Avogadro respecting molecules, and thence leads his hearers or readers on through various easy steps to the very heights of the science of chemistry.' STANDARD. SCIENTIFIC CULTURE BY JOSIAH P. COOKE, JUN. PROFESSOR OF CHEMISTRY AND MINERALOGY IN HARVARD COLLEGE An Address delivered July 7, 1875, at the Opening of the Summer Courses SCIENTIFIC CULTURE, You have come together this morning to begin various elementary courses of instruction in chemistry and mineralogy. As I have been informed, most of you are teachers by profession, and your chief object is to become acquainted with the experimental methods of teaching physical science, and to gain the advantages in your study which the large apparatus of this university is capable of affording. In all this I hope you will not be disappointed. You, as teachers, know perfectly well that success must depend, first of all, on your own efforts; but, since the methods of studying Nature are so different from those with which you are familiar in literary studies, I feel that the best service I can render, in this introductory address, is to state, as clearly as I can, the great objects which should be kept in view in the courses on which you are now entering. By your very attendance on these courses you |