CONTENTS. 
V 
No. III. 
ORIGINAL COMMUNICATIONS. 
Convolvulus panduratus. By Walter Shinn, .... 177 
Observations on Xerophyllum setifolium. By William Procter, jr., 183 
On the Adulteration of Lac Sulphuris, ..... 186 
On Tincture of Kino. By Augustine Duhamel, .... 187 
Observations on the Method of Displacement. By Augustine Du- 
hamel, and William Procter, jr. ...» 189 
Black Drop. By Charles Ellis, ...... 202 
SELECTED ARTICLES. 
On the injurious effects of the pharmaceutical treatment of Digitalis 
Purpurea, in forming its Tincture, with a proposal for a 
more efficacious Formula. By M. Donovan, Esq., . . 204 
On the Precipitation of the principal Metals, by means of Sul- 
phuretted Hydrogen, from solutions acidified with Hydro- 
chloric Acid. By M. Hugo Reinish, . . . .215 
New researches upon the Composition of the Organic Alkalies. 
By M. V. Regnault, ....... 218 
The frequent Adulteration of Drugs ; Calomel, Extracts, Bella- 
donna. By T. & H. Smith, of Edinburgh, . , .221 
Experiments with the Wourali Poison. Performed by Mr. Water- 
ton at the Medical School, Nottingham, .... 224 
On a new Compound, consisting of Iodide of Potassium, Iodine, 
and the essential Oil of Cinnamon. By James Apjohn, 
M. D., M. R. I. A., Professor of Chemistry in the Royal 
College of Surgeons, Ireland, 227 
