11 



CONTENTS, 



Page. 



XX. 



On the V^esretation of the First 



Period of an Ancient 

 World ; by Heniiv Witham, of Larlington, (Eng.) 



F, G. S. &c. -" - . - . - 



XXI. Oil the use of the Anthracite Coal in the making of 



Brick; by VVjlliam Muade, M. D. - - - 

 XXII. Description of a frame Bridge ; by Geo. W. Long, 



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



XXIIL Mineralogictil Journey by C. U. SiiKrAKo, A^.'^is. to the 



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



Yale Col. 



XXI\\ Notice of the American Antiquarian Society, from a 



letter of Dr. Jacob Porter, _ - - - 

 XXV. Notice of the Osseous remains 'stt Big Bone Lick, 



Kentucky, - - - - - 



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



* ■ ■ " 



and the Ediior, _ - - - 



SCIENTIFIC INTELLIGENCE.* 



CHEMISTRY. 



1, 2, 3. Cement for hard stone?, porcelain anJ glass — Preserva- 

 tion of butter — Artificial preparation of ice, 



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

 phuric acid on hydro-cyanic acid, _ _ _ 



C, 7, S. Phosphorus in vacuo — Combustibility of caihon increas- 

 ed by platinaand copper — Decomposition of sulphates 

 in water by organic matters, 



&, 10, 11. .Instantaneous light apparatus — Sympathetic iid<; — On 



110 



iia 



1 



23 



12a 



131> 



131) 



112 



145 



i 1 B 



147 



151 



a peculiar principle in blood, distinctive of its Source, 14i) 

 12, 13, On the formation of ncid:? in vegetables — ProporlioiiSJ of 



oil in different oleaginoQs plant.s, * - - 150 



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

 ing pl;)ti:m, ' - - - - _ . 



16- Process for preserving milk, for any length of linie, 



17, IS. Decomposition of carburet of sulphur, by weak electric 



action- — Combinations of bromine, - ' - 



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

 "1, 22. Chloride of nitrogen — Fnlminating sliver, - - 155 



23, Percussion powder, -----.. 15G 



15 



(.y 



153 



I 



MLIOICAL CHEMISTRY. 



r 



I. Decomposition of sulphates in waters, hy organic sub^taucerf, 15G 



/ - 



Tlte an-dngcd arliclc:^ conuuiniicaktl i-y Pjoi". J. Gitcoxn. 



