IV CONTENTS. 



MISCELLANIES. ^DOMESTIC AND FOREIGN. 



Page. 



1. Travelling term of Rensselaer School, for 1830, with a no- 



tice of the nature of the Institution, - - 151 



2. Proceedings of the Lyceum of Nat. Hist, of New York, 159 



3. Notices communicated by Dr. Wm. Darlington, - - 160 



4. Chart of Long Island Sound^ _ - _ _ i63 



5. Use of chloride of lime in the U. S. Navy, - - 164 



6. Use of chloride of lime in bleaching the pulp of rags pre- 



pared for making paper, - - - - 166 



7. S. Professor Hitchcock's lectures on diet, regimen and em- 



ployment — On frogs and toads in stone and solid earth, 167 

 9, 10. Character and description of a new species of Ulmus, 



with a plate — On the occupation of Aldebaran, - 179 



11, 12. Effect of certain mineral poisons on living plants — No- 

 tice of a Barn Swallow, - - - - 172 



13,14. New pyrophorus — Transactionsof the Albany Institute, 173 



15. American Annals of Education and Instruction, and Journal 



of Literary Institutions, _ _ - - 174 



16, 17, 18. American steel — Collection of colloquial phrases — 



Culture of Silk, - - - - - 175 



19, Protection for Steam Boilers, _ , . - 176 



CHEMISTRY. 



%. ■ ■ 



1. Sulphuric acid produced by the vapors of the Aix waters, 176 

 2, 3, 4. Crystallization of barley sugar — Vegetable crystalliza- 

 tion — Disinfecting powers of chloride of lime, 177 

 4f 6. Impure salt in France — Theory of Voltaic electricity, 178 



MECHANICAL PHILOSOPHY. 



1. Shocks by the electric currents, - - - - 180 



2. Elastic force of steam, - - - - -181 



3. Note on the fabrication of steel at Sheffield in Yorkshire, 



with a figure, - - - - - - -182 



4. 5. Hydrostatic balance — Hydrostatic press, - - 185 

 6, 7, 8. Extinguishment of fires in chimnies — Lightning rods — 



Indian corn, . - - _ - 186 



9. Heat lightning, ------ 187 



10. Determination of metallicity, . - . - 188 



