400 
INDEX. 
Hydrated peroxide of iron and magnesia as antidotes for arsenic, 278 
Hydrargyri iodidum rubrumj . . . . . 113 
Hydrometers, correspondence of, with specific gravity, . . 1 
" graduating of . . . . . 310 
Improved mode of preparing cafTein, .... 176 
Improvement in the quick vinegar process, . . . 380 
India-rubber tree, ...... 78 
Ink for the million. . . . . . . 316 
11 Runge's, ■ . . . . . . . 317 
Iodide of quinium, . . . . . . 304 
" of starch, soluble . . . ... . 169 
c: of zinc, syrup of ..... no 
Iodine, its proportion in cod-liver oil, .... 171 
Iodine rendered soluble by syrup of orange-peel and tannin, . 171 
I odine andthe essential oils, their reaction, . . . 203 
Jackson's Dr. pectoral syrup, ..... 34 
" ammonia lozenges, .... 35 
" pectoral lozenges, ..... 34 
Jalap, two varieties of false, ..... 149 
Jalap, purgative syrup of . * . . . 169 
Jargonelle pear essence, . . . . " 38 
Jatiopha urens, ....... 274 
Jipijapa or Panama hat plant, ..... 175 
Juice of dandelion, method of preserving the . . 64 
Lamp, Dr. Hildreth's chlorine . . 205 
Lavender, compound spirit of . . . . 221 
Lehman's physiological chemistry, review, . . . 286 
Life of Cavendish, review, ..... 289 
Linimentum Cantharidis, . . . . . 302 
Linseed oil. drying ...... 269 
Liquor, Hoffman's anodyne ..... 213 
Liquid Socotrine aloes . . . . . . 231 
Liquor Potasses Arsenitis, ...... 225 
Lobelia, fluid extract of . . . . . 207 
Magnesia, common calcined ..... 94 
(( Henry's calcined ..... 95 
u Report on soluble citrate of . . . . 113 
u as an antidote to copper pcisoning, . . . 180 
Malefern, constituents of ..... 64 
11 ethereal extract of . . . . . 61 
Manganese, preparation of the salts of .... 9 
