WITH REMARKS ON THE SAME FROM THE AMERICAN JOURNAL OF SCIENCE BY PROFESSOR SILLIMAN. ALSO, EXTRACTS FROM OTHER PUBLIC JOURNALS, AND INFORMATION ON ELECTRICITY, GALVANISM, ELECTRO-MAGNETISM, &c. BY MRS. SOMERVILLE. NEW-YORK: G. & C. CARVILL & CO., 108 BROADWAY, AND GEO. F. HOPKINS & SON, 98 NASSAU-STREET. 1837. X22 A 60 Entered according to Act of Congress, in the year 1837, by G. & C. CARVILL & Co., in the Clerk's office of the District Court of the Southern District of New-York. Kelleher 5-6-43 INTRODUCTION. THE present compilation has been prepared in compliance with the very frequently expressed wish of many inquirers for information on the subject of Electro-Magnetism, particularly with reference to the recent important discovery of Mr. DAVENPORT, of the practicability of the application of this power to machinery. The history of his invention has been prepared by a friend and associate of Mr. Davenport and under his inspection, and will be found to contain the most important facts relative to the rise and progress of this interesting discovery. The remarks of Professor SILLIMAN on the subject, from the American Journal of Science and Arts, and the opinions of many editors of our public Journals, follow the narrative. As Electricity and Magnetism are comparatively modern sciences, and that of Electro-Magnetism is of very recent origin, we have made copious extracts from the able treatise of Mrs. Somerville, "on the connexion of the Physical Sciences," for the information of those who have not time or inclination for researches in more elaborate works. |