66 EVERY MAN IS A VALUABLE MEMBER OF SOCIETY WHO BY HIS OBSERVATIONS, RESEARCHES, AND EXPERIMENTS PROCURES KNOWLEDGE FOR MEN."-SMITHSON. WASHINGTON: PUBLISHED BY THE SMITHSONIAN INSTITUTION. CONTENTS. ARTICLE I. ON RECENT IMPROVEMENTS IN THE CHEMICAL ARTS. BY ARTICLE II. EXTRACTS FROM THE PROCEEDINGS OF THE BOARD of Re- GENTS OF THE SMITHSONIAN INSTITUTION, IN RELATION TO THE ELECTRO-MAGNETIC TELEGRAPH. (Reprinted from Proceedings of the Board of Regents for 1857.) ARTICLE III. CATALOGUE OF PORTRAITS OF NORTH AMERICAN INDIANS, WITH SKETCHES OF SCENERY, ETC. PAINTED BY J. M. ARTICLE IV. CATALOGUE OF NORTH AMERICAN BIRDS, CHIEFLY IN THE MUSEUM OF THE SMITHSONIAN INSTITUTION. BY SPEN- CER F. BAIRD. 1859. First octavo edition. Pp. 24. ARTICLE V. CATALOGUE OF NORTH AMERICAN REPtiles in the MUSEUM OF THE SMITHSONIAN INSTITUTION. Part I. Serpents. ARTICLE VI. CHECK LIST OF THE SHELLS OF NORTH AMERICA. Pre- pared for the Smithsonian Institution by ISAAC LEA, ARTICLE VII, DIRECTIONS FOR COLLECTING, PRESERVING, AND TRANSPORTING SPECIMENS OF NATURAL HISTORY. Prepared for the use of the Smithsonian Institution. Third edition. 1859. Pp. 40. ARTICLE VIII. CIRCULAR TO OFFICERS OF THE HUDSON'S BAY COMPANY. 1860. Pp. 8. ARTICLE IX. INSTRUCTIONS IN REFERENCE TO COLLECTING NESTS AND EGGS OF NORTH AMERICAN BIRDS, pp. 22, and 18 wood-cuts. CIRCULAR IN REFERENCE TO THE HISTORY OF NORTH AMERICAN GrasshoppERS, pp. 4. CIRCULAR IN REFERENCE TO COLLECTING NORTH AMERICAN SHELLS, pp. 4. In one pamphlet of 30 pages. 1860. ARTICLE X. CIRCULAR IN REFERENCE TO THE DEGREES OF RELATION- |