CONTENTS. 
No. III. 
Observations on the fruit of Diospyros Virginiana. By Benj. R. Smith, 161 
On the Ethereal Extract of Cubebs. By William Procter, Jr. . . 167 
Iodide of Iron obtained by double decomposition. Extracted from a 
Memoir on Iodide of Iron. By M. Ch. Calloud, . . .170 
Examination of Piper Angustifoliurn, or Matico. By Thos. 8. Wiegand, 174 
On the employment of Magnesia in the treatment of Poisoning by Arse- 
nious Acid. By A. Bussy, 179 
On Amorphous Quinine as it exists in the substance known in com- 
merce as Quinoidine. By Baron Liebig, . . . .181 
Amorphous Quinine. By Dr. Natorrs, ...... 189 
New apparatus for extracting the colouring from Dye Woods. By M. 
Iwan Schlumberger, ........ 191 
On the quantitative estimation of Bromine in Mineral Waters. By M. 
Heine, 195 
On an advantageous method of preparing Chromic acid, and on a pecu- 
liar behaviour of this acid towards sulphuric acid. By Dr. P. A. 
Bolley, 199 
On the precipitation of different Organic and Inorganic substances by 
animal Charcoal. By F. Weppen, 203 
Animal Charcoal an Antidote to Poison, . . . . . 207 
On the action of bitter Almonds, the leaves of the Cherry-laurel, Peach 
blossoms, and their distilled waters. On Essential oils, and Aro- 
matic substances in general. By M. Maher, .... 209 
Chemical Investigation of the Red Poppy, (Flor. Papav. Rhcead.) By 
Leo Meier, , . . . .211 
Chemical examination of the Inner Bark of the Elder Tree, (Sambu- 
cus Nigra.) By II. Kramer, 214 
Adulteration of Iodide of Potassium by means of the Bromide ; the 
means of determining the amount of the latter in the compound. 
By M. Personne, 217 
On the employment of the Oxalate of Alumina in the manufacture of 
Cane and Beet-Root Sugar. By M. Mialhe, .... 219 
New Process for the detection of Arsenic in Organic Mixtures. By H. 
Letheby, M. B 220 
Method of extracting the Iodine and Bromine contained in the Salts 
and Mother-liquor of Kelp Soda, 224 
Observations on Myrrh, and on a method of distinguishing it from 
Bdellium. By L. F. Bley and E. Diesel, . . . .227 
On the Employment of Essence of Turpentine as a Solvent for Caout- 
chouc. By M. Bouchardat, 229 
Patent granted to J. B. Gregson, Dunston, Durham, for improvements 
in the manufacture of Epsom Salts and Carbonate of Lime, com- 
monly called precipitated Chalk, parts of which improvements are 
applicable to other purposes, 231 
Misceli.an r, 234 
