CONTENTS. ‘ ™M 
Page. 
11. 12. 13. 14. Action of heat upon razors.—-Substitute for India 
ink.—To destroy caterpillars—American Gypsies, 189 
15. Bituminous coal, - = 2 Mi ih 190 
16. 17. Miscellaneous facts.—India rubber carpets, - 191 
18. Stereotype Metallographic Printing, - 2 192 
19. Materials for paper, - - - - 193 
OTHER NOTICES. 
1. Notice of a work, entitled Experiments and Observations on 
the Gastric Juice, and the Physiology of Digestion, 193 
2. The Cyclopedia of Practical Medicine and Surgery, a Digest 
of Medical Literature, - = z : 202 
3. Obituary of Gen. Martin Field, - = - 204. 
4. The Rotating Armatures, - - - E 205 
5. Remarks on steam as a conductor of electricity, 2 206 
6. Sulphuric acid, - - - - 4 207 
7. 8. Observations on the time of the appearance of the Spring 
birds in Williamstown, (Mass.) in the years 1831], 
1832 and 1833.—Recent Scientific Publications in 
the United States, = = - 208 
9. Cabinet of the late Dr. William Meade, - i 209 
10. 11. 12. Ewbank’s Tinned Lead-pipes.—American Mohete 
or Domestic Callender.—Price of Platinum—Test 
Paper, - - - - - 210 
13. 14. Baker’s Bread.—Loss of memory from the use of gin, 211 
15. Outlines of Geology, &c., by Dr. J. L. Comstock, - 212 
16. 17. Prof. Hitcheock’s Report on the Gevlogy, Mineralo- 
gy, Botany and Zoology of Massachusetts.—Sec- 
ond American edition of Bakewell’s Geology, 213 
18. Magnetism, -— - - - - - - - - 214 
19. 20. Mr. C. U. Shepard’s private School of Mineralogy and 
other branches of Natural History.—Ligneous stems 
of American Coal-Fields desired, SU ati 215 
21. 22. Crystalline Lenses of American Animals desired.—Man- 
tell’s Geology of the South East of England, 216 
23. Septaria of extraordinary size and beauty, - - 217 
24. 25. 26. Fossil jaws of the tapir—Chalk and chalk fossils in 
granite.—Obituary of Rev. L. D. Schweinitz, - 218 
