PROCEEDINGS OF 23,100 THE AMERICAN ASSOCIATION FOR THE ADVANCEMENT OF SCIENCE, THIRTIETH MEETING, HELD AT CINCINNATI, OHIO, AUGUST, 1881. SALEM: PUBLISHED BY THE PERMANENT SECRETARY. 1882. The SHEFFIELD SCIENTIFIC SCHOOL is a department of Yale College devoted to instruction and researches in mathematical, physical and natural sciences. Its corps of teachers consists of sixteen professors, and ten instructors and assistants. The instruction is intended for two classes of students : I. Graduates of this or of other Colleges, and other persons qualified for advanced or special scientific study. II. Undergraduates who desire a training chiefly mathematical and scientific, in less part linguistic and literary, for higher scientific studies, or for various other occupations to which such training is suited. The undergraduate course extends over three years. The first year is the same for all students; the two succeeding years, one of the following courses may be taken : 5. In Natural History (including Zoology, Botany, Min- 6. In Biology preparatory to a Medical Course; 7. In Select studies preparatory to other higher studies. French and German are required studies in all the undergraduate courses. Graduate students are permitted freely to attend any of the exercises of the undergraduate courses, as well as to pursue special higher studies. For programmes giving full particulars, address the Executive Officer, Prof. GEO. J. BRUSH, New Haven, Conn. NATURAL HISTORY STORE, 168 Tremont Street, Boston, Mass. ESTABLISHED IN 1859. A specialty of Instruments, Material and Supplies for Naturalists and Taxidermists. Price list sent upon application. Minerals for educational and ornamental purposes of which a large select stock is always on hand. Rare Gems and Precious Stones, Agates, Fossils, Shells. Foreign and Native mounted Birds and Birds' Skins, Birds' Eggs and Natural History specimens. W. J. KNOWLTON, 168 Tremont St., Boston. Mineralogist and Naturalist. WALKER PRIZES IN NATURAL HISTORY. THE BOSTON SOCIETY OF NATURAL HISTORY Offers a First Prize of from $60 to $100, and a second of $50, for the best memoirs in English on the following subject: April, 1883. Original unpublished investigations respecting the lifehistory of any animal. Prizes will not be awarded unless the papers are deemed of adequate merit. Further particulars about these prizes can be obtained of EDWARD BURGESS, Sec'y of the Society of Natural History. Boston, Mass. |