vi CONTENTS. 



Page. 



o 



292 



IV. Experiments on the stiffness and strength of certain kinds 



of timber, made by order of Lt. Col. Totten, and com- 

 municated by Lt. T. S. Brown, U. S. Eng. - 22 

 V. On the Causes of the Aurora Borealis, - - 2 

 VI. On the proximate causes of certain Winds and Storms; 



by Prof. E. Mitchell, Univ. of Nor. Car. - - 243 

 VII. On the rapid production of Steam, in contact with heated 



metals ; by Prof. Walter R. Johnson, Franklin Insti- 

 tute, Philadelphia, - 

 VIII. List of the Plants of Chile ; translated from the Spanish, 



by W. S. W. Ruschenberger, M. D. U. S. Navy, 299 



IX. Notice of the mine of Spathic Iron (steel ore) of New 



Milford, and of the Iron Works of Salisbury, Conn. ; by 

 C. U. Shepard, Ass't to the Prof, of Chem. &c. in Y. C. 31 1 

 X. Remarks on Prof. Eaton's "Observations on the coal for- 

 mations in the State of New York ;" by David Thomas, 

 Civil Engineer, &c. - 



XI. Electro-Magnetic Experiments; by Dr. G. Moll, Prof. 



32G 



of Nat. Phil, in the Univ. of Utrecht, &c. &c. - 329 

 XII. Notice of improvements in the Surveyor's Compass, con- 

 structed by Thomas Kendall, of New Lebanon, N. Y. 337 

 XIII. Remarks on Arsenic, with drawings of the color of its 



precipitates, formed by reagents applied to them; by 

 Dr. Lewis Feuchtwanger, 



339 



MISCELLANIES. DOMESTIC AND FOREIGN. 



1. The Authors Explanatory Notice of the Elements of Chem- 



istry, in the order of the Lectures given in Yale College, 343 



2. Proceedings of the Lyceum of Natural History of New York, 353 



3. Academy of Natural Sciences of Philadelphia, - - 355 



4. Swallows; notice by Dr. Steel, - 35G i 



5. Annals of Education and Instruction,* - - - 357 



6. Mastodon, near Rochester, N.Y. ... 35s 



7. Analysis of the supposed Anthophyllite of New York, 359 



8. 9. Penetrativeness of fluids — Albany Institute, - - 3G0 

 10, 11. Singular impression in marble — Remarks on the amelior- 

 ation of our physical climate, ... 361 



12. The Chemistry of the Arts, 



13. A Treatise on Fever, 



3G2 

 36:; 



Repeated through inadyertence ; it was in the preceding number 



