32S INDEX. 
Hemlock, tincture of 109 
Henbane, tincture of 109 
Hippuric acid, . 320 
Hydrochlorate of morphine, . 235 
Hydrochloric acid, Duflos' mode of purifying .. 79 
Hydrocyanic acid, action of, as a poison, .... 234 
" " process for preparing .... 274 
Hyposulphite of soda, . ... ^ ... 78 
Improvements in making the cyanides and ferrocyanides of po- 
tassium and sodium, 277 
India rubber plasters. 235 
Infusions, temperature of water used in the preparation of . 141 
Iodide of iron obtained by double decomposition, . . . 170 
Iodidi potassi, unguentum, yellow colour acquired by keeping 76 
Iodine, adulteration of 77 
" and bromine, extraction from liquor of kelp, . . . 224 
Ipecacuanha, tincture of .«'• 104 
Iridescent silver, 50 
Iron, iodide of , 170 
" tartrate and citrate of, action of ferrocyanide of potassium, . 310 
Isinglass, Samovy 54 
Jalap, tincture of . . . . . . . 104 
Kelp soda, method of extracting iodine and bromine from liquor of 224 
Kino, East Indian 79 
Lactucarium, '. __ . . .32 
Laudanum, 16 
Leeches, preservation of . . , . . . .313 
Linseed oil, products by oxidation, 76 
Lucifer matches, . 318 
Magnesia, employment in poisoning by arsenious acid, . 179, 287 
Manganese, red colour of the protosalts of .... 306 
Manganium, method of preparing the pure sulphate of . . 57 
Manufacture of Lucifer matches without sulphur, . . . 318 
Matico, .......... 174 
Marble, artificial . . ■ 319 
Meadow saffron, tincture of Ill 
Memoir of Constantine Adamson, 248 
Meloe, chemical examination of several species of j . . 73 
Milk wort, tincture of . .115 
