PUBLISHERS' ADVERTISEMENT. 



THE 



ANNUAL OF SCIENTIFIC DISCOVERY: 



OR, 



YEAR-BOOK OF FACTS IN SCIENCE AND ART, 



EXHIBITING THE MOST IMPORTANT DISCOVERIES AND IMPROVEMENTS IN 

 MECHANICS, USEFUL ARTS, NATURAL PHILOSOPHY, CHEMISTRY, AS- 

 TRONOMY, METEOROLOGY, ZOOLOGY, BOTANY, MINERALOGY, GE- 

 OLOGY, GEOGRAPHY, ANTIQUITIES, &C. TOGETHER WITH A 

 LIST OF RECENT SCIENTIFIC PUBLICATIONS ; A CLASSI- 

 FIED LIST OF PATENTS ; OBITUARIES OF EMINENT 

 SCIENTIFIC MF.N ; AN INDEX OF IMPORTANT 

 PAPERS IN SCIENTIFIC JOURNALS, 

 REPORTS, <fcC. 



EDITED BY DAVID A. WELLS, 



OF THE LAWRENCE SCIENTIFIC SCHOOL, CAMBRIDGE, 



AND GEORGE BLISS, JR. 



THE ANNUAL OF SCIENTIFIC DISCOVERY is designed for all those who de- 

 sire to keep pace with the advancement of Science and Art. The great and 

 daily increasing" number of discoveries in the different departments of science 

 is such, and the announcement of them is scattered through such a multitude 

 of secular and scientific publications, that it is very difficult for any one to ob- 

 tain a satisfactory survey of them, even had he access to all these publications. 

 But the Scientific Journals, especially those of Europe, besides being many of 

 them in foreign languages, have a veiy limited circulation in this country, and 

 are therefore accessible to bitt very few. It is evident, then, that an annual 

 publication, giving a complete and condensed view of the progress of discovery 

 in every branch of Science and Art, being, in fact, the Spirit, of the Scientific 

 Journals of the year, systematically arranged, so as to present at one view all 

 the new discoveries, useful inventions, and improved processes of the past 

 year, must be a most acceptable volume to every one, and greatly facilitate the 

 diffusion of useful knowledge. As this work will be issued annually, the read- 

 ing public may easily and promptly possess themselves of the most important 

 facts discovered or announced in these departments from year to year. 



