CONTENTS. 
Vll 
No. IV. 
Observations on Extract of Rhatany. By William Procter, Jr. - 267 
Report of the Committee charged by the Pharmaceutical Society 
with the examination of a paper entitled " Observations on 
Extract of Rhatany, by William Procter, Jr." - - - 273 
On Populus Tremuloides. By Laurence Turnbull, - 275 
On the Beaked Hazel. By Augustine Duhamel, - 280 
Pharmaceutical Notices. No. XXIII. By Augustine Duhamel, 281 
Some notice of Fuligokali and Anthrokokali. By Augustine Du- 
hamel, 284 
Note on Extract of Senegse, - 287 
Gallipots, 288 
Report of the Committee on an article purporting to be Jalap, now 
in the market, - - - - - - - 289 
Note to the Report on False Jalap, 293 
On the Preparation and Use of Cyanide of Potassium. By J. 
Liebig, 295 
A mode of discriminating between Nitrates and Chlorates in very 
dilute Solutions. By M. Vogel, Jr., of Munich, - - 304 
On Annual and Biennial Hyoscyamus. By Joseph Houlton, M.D. 305 
On the Varieties of Hyoscyamus. By Jonathan Pereira, M, D., 
F.R.S.,&c. 307 
Protosulphuret of Iron, a New Antidote for Corrosive Sublimate. 
By M. Mialhe, - - - 309 
On the Purification of Sulphuric Acid. By M. Jaquelin, - 311 
Preparation of Perchloric Acid. By M. Ad. Nativelle, - - 312 
Researches on MM. Varrentrapp and Will's Method of Analysis. 
By M. Reizet, 316 
On a very Simple and Correct Method of Separating and Deter- 
mining the Quantities of Potash and Soda when present 
alone, or accompanied with Magnesia in a soil or other 
mixture. By Mr. William Horatio Potter, M.R.A.S. - 317 
Table of the Densities of Alcoholic Liquids. By H. Beasley, - 321 
On the Adulteration of Senna. By Jacob Bell, - - 323 
On an Explosive Compound formed during the Distillation of Hy- 
drocyanic acid. By Mr. Alsop, 326 
