IV CONTENTS. 



XXIL Description of a frame Bridge; hy Geo. W. Long, 



Lieut. U. S. Art. ------ 



XXIIL MineralogicalJourneyby C- U- Shepard, Assis. to the 



Prof, of Chem. and Min., and Lect. on Bot. in 

 Yale Col. 



XXIV. Notice of the American Antiquarian Society, from a 



Page. 



123 



126 



139 



142 



letter of Dr. Jacob Porter, - - - - 136 

 XXV. Notice of the Osseous remains at Big Bone Lick, 



Kentucky, ------- 



XXVI. Bromine in American Saline Waters. A. A. Hayes, 



and the Editor, --.*-- 



SCIENTIFIC INTELLIGENCE.* 



J 



CHEMISTRY. 



I, 2, 3. Cement for hard stones, porcelain and glass — Preserva- 

 tion of butter — Artificial preparation of ice, - 145 

 4, 5. Action of iron on ammonia — Effect of muriatic and sul- 

 phuric acid on hydro-cyanic acid, - - - 145 

 ■ 6, 7, 8. Phosphorus in vacuo — Combustibility of carbon increas- 

 ed by platina and copper — Decomposition of sulphates 

 in water by organic matters, - - - - X47 

 9, 10, 11. Instantaneous light apparatus — Sympathetic ink — On 



a peculiar principle in blood, distinctive of its source, 143 

 12, 13. On the formation of acids in vegetables — Proportions of 



oil in different oleaginous plants, - - - 150 



14, 15. Coloring matter of Lichen Rocella — Researches respect- 



ing platina, 



151 



.16. Process for preserving milk, for any length of time, - 152 

 IT, 18» Decomposition of carburet of sulphur, by weak electric 



action — Combinations of bromine, - - - 153 



19,20. Preparation of bromine — Preparation of ioduret of azote, 154 

 :21, 22. Chloride of nitrogen — Fulminating silver, - - 155 

 23. Percussion powder, - - 



156 



MEDICAL CHEMISTRY. 



1. Decomposition of sulphates in waters, by organic substances, 156 



2,3. Poisonous confectionary — Memoir on hydro-cyanic acid, 157 



4. Efficacy of chlorides, - - - - - - 159 



5- Deleterious effects of sulphuretted hydrogen, - - 160 



6, 7, 8. Cleansing of sewers — Chlorine — Hydriodic ether, 161 



9. Analysis of bile, 162 



NATURAL HISTORY. 



162 



1. Analysis of the Russian platina, ------ 



2, 3. On the silicate of iron, of Badenmais — On a new mineral, 



hydro-carbon, - - - - 



4. Means employed by the spider in weaving its web, - 165 



5, Phosphorescence of sea water, - - - - - 166 



164 



The arranged articles commuiiicated by Prof. J. Griscom. 





