CONTENTS. 



Page. 

 25, 26. Exchanges in natural history — Magnetic oxide of iron, 212 



27. A parasite of the honey bee, ------ 213 



28. Olmsted's Compendium of Natural Philosophy, - - 214 



OBITUARY. 



1. Col. George Gibbs, . - - - - - 214 



2. Dr. William Meade, - 215 



NUMBER II. 



Art. L Ten Days in Ohio; from the Diary of a Naturalist, 217 



II. Report of the Regents of the University, to the Legisla- 

 ture of the State of New York, Feb. 28, 1833, - 258 



III. Upon Caloric, as a cause of Galvanic Currents ; by Prof. 



John P. Emmet, - - - - - - - 269 



IV. Motionof a System of Bodies; by Prof. Theodore Strong, 281 

 V. Of securing houses and their inhabitants from fire, and of 



obtaining supplies of water and of warm air, - 290 



VI. Observations on architectural, rural, domestic, and other 



improvements; by Eleazar Lord, of New York, - 304 

 VII. On the Fur Trade, and Fur-bearing Animals, - 311 



VIII. Additional remarks on the Agave and other plants, from 

 which ropes, twine, and thread, are made ; by James 

 Mease, M. D., and H. Perrine, Esq. - - - 330 

 IX. Descriptions of some new North American Trilobites ; 



by Prof. Jacob Green, M. D. - - . - 334 



IX.* Description of some new species of Fresh Water Shells 

 from Alabama, Tennessee, &c. ; by Timothy A. Conrad, 



Philadelphia, 338 



X. Carbonic oxide gas, obtained free of carbonic acid ; by 



Prof. Thomas D. Mitchell, M. D. - - . 344 



XI. A Sketch of the Mineralogy of a portion of Jefferson 

 and St. Lawrence Counties, (N. Y.) ; by Drs. J. B. 

 Crawe, of Watertown, and A. Gray, of Utica, (N.Y.) 346 

 XII. Geology and Meteorology west of the Rocky Mountains, 351 



XIII. On the Meteors of Nov. 13, 1833 ; by Professor Edward 



Hitchcock, ._--_-- 354 



XIV. Observations on the Meteors of Nov. 13th, 1833; by 



Professor Denison Olmsted. _ . _ . 353 



Art. IX repeated through mistake. 



