= CONTENTS. 
Page 
3, 4. Watkins’ dry galvanic betiery-ecantrietty of Saturn’s a 
1 
5, 6. An improved _—— for drying wood for glass-houses— 
lowpipe simplified, 163 
_{, 8. Linear felt Sinoke dlapereer of M. Millet, - 164 
9. Conductibility conferred by wa : - 165 
CHEMICAL PHILOSOPHY. 
1. Litmus paper _- - - 165 
2. Liquid sulphurous ac aia, 166 
3, 4. Crystallization of jodine—Note on the action of asta 
upon inflammable 
5. Sao f hoses and ‘the employment of gelating. 169 
6, 7, 8. Color of the sea— 
osphori—Test Ae the eee 
of snioeii or chloride of lime, 
9. New indelible in be 
10, 11. Detection of 7 poiatce flour i in that of wheat-—‘Aspartic eid, 173 
12, 13. Extrication of gas from ee to preety 
14, 15. Copal varnish—Oily and resinous products of the distil 
lation of wood 
16, 17, e a"; method of disedvering “the presence of witite” 
ra hadestion of boracic acid by ghd ta ine py- 
ae 
19, 20. icdaret of” caitlin: and potassium—Instructions petitive 
to the art of refining - 
21. Pectic acid convertible into oxalic by an alkali, - 179 
22. Detection of corrosive sublim 181 
vas 24. Qn B yeahs and s odin — est for vegetable and ani- 
atter, 18 
NATURAL HISTORY. 
1. Couzeranite 183 
2, 3, 4. Belemnites—Number of a divisibility of matter— 
res oe of cloth, furs, 84 
5. Beas of the m 85 
7, 8. Obacr-vations on the Hdluened of cold on new born chil- 
d a ouality among leeches ores storms—Ossifi- 
tion of the vitreous humor 186 
9. Zuilogient weather glass, - - - 187 
ARTS, 
i Manufacture of red crayons, for Rags - - 187 
. On the Preservation of Potatoe - 188 
MEDICAL STATISTICS. 
1. Elements of Medical Sette, &e. - - - 188 
. Urinary calculi, . - : : 190 
MISCELLANEOUS. 
1. Religious toleration in Russia, 192 
2, 3. Examination of patent claime—French eges and apples, 193 
