330 INDEX. 
Oil of hops, . . . ,.'.<.•'.■ . . . . 154 
instrument for delecting the adulteration of olive ... 24 
potato ........... 233 
Ointment, antiperiodic - 238 
of mercury and belladonna, - 318 
mercurial - - - - 1, 64, 134 
Olibanum, Indian ------- 189 
Opiamon, ------- - 137 
Opianic acid, - 136 
ether, 137 
Opianosulphurous acid, - - - - - - 138 
Opium, - . - - „ - - - ■;•«« - ; • 
indigenous - - - - -60 
Opodeldoc, liquid, ------- 317 
Organic alkalies, alteration of, by nascent oxygen, - - 197 
reaction of iodide of potassium with - - 21 
Organs of plants, mineral substances in - - - - 264 
Oxalate of ammonia, its action on sulphate of lead, - 271 
Paint, red iodide of mercury as a - - - - - 155 
Pathological specimens, preservation of - - - - 159 
Peroxide of iron, deoxidation of salts of - 252 
Perchloride of iron, preparation of - 142,167 
Persian musk root, - - 119 
Persalts of iron, deoxidation of - - 252 
Pharmacy, officers of the College of ... 74 
public commencement of the College of - - - 153 
Pharmaceutical meetings, - - - - - 70 
Pinkroot, extracts of ------ 18 
Piper, angustifolium, - - - - - - 105 
Pistacia, galls of - - - - - 32 
Plaster, formula for blistering ----- 159 
Potassa, adulteration of neutral chromate - 156 
behavior of the antimoniate with the earths, - 37 
hyposulphite and trithionate of - 190 
means of detecting the adulteration of, by soda, - - 203 
salts of, their action on sulphate of lead, - - 271 
solubility of the sulphate ----- 27 
Potassium, new method of preparing iodide of 301 
on the dosing of iodide of - 316 
reaction between the sulphate of organic alkalies and 
iodide of - - - - - - 21 
Potatoes, oil of - - .. - - 233 
Preservation of pathological specimens, - - - 159 
