Mace, 253 Malic acid, 173 Malt, 132, 137 Maltose, 107 Malt substitutes in beer, 137, 148 Maple sugar, 109 Marble dust, 131 Marc of wines, 157 Martius’ yellow, 77, 240 Meat extracts, 255 Micro-organisms in water, 214 Microscopic examination of butter, 78 ---- ---- coffee, 40 ---- ---- fats, 78, 79 ---- ---- milk, 61 ---- ---- spices, 246 ---- ---- starches, 100 ---- ---- tea, 17 ---- ---- water, 216 Milk, 49 ---- Adam’s method for, 59 ---- adulteration of, 49 ---- analysis of, 53 ---- ash of, 52 ---- caseine in, 59 ---- composition of, 51 ---- condensed, 53 ---- cream in, 57 ---- fats in, 57 ---- globules, 61 ---- nitrites in, 62 ---- photo-micrographs of, 61 ---- ptomaines in, 62 ---- skimmed, 50 ---- specific gravity of, 53, 55 ---- standards for, 59-60 ---- sugar of, 59 ---- total solids, 58 ---- water in, 56 Miscellaneous adulteration, 254 Molasses, 105 Moore’s test for carotine, 77 Mustard, 239 ---- adulteration of, 240 ---- analysis of, 241 ---- ash of, 242 ---- colouring of, 240 Mustard, composition of, 239 ---- flour in, 240 ---- oil of, 241 ---- sulphur in, 241 N. Nessler’s solution, 208 Nitrates in water, 210 Nitrites in milk, 62 ---- ---- vinegar, 231 ---- ---- water, 210 Nitrogen in flour, 89 ---- ---- tea, 21 ---- ---- water, 210 O. Oenanthic ether, 158 Oils, bitter almond, 129 ---- cocoanut, 73 ---- cognac, 193 ---- cotton seed, 234, 236 ---- fusel, 197 ---- lard, 68 ----- mustard, 241 ---- nut, 235 ---- olive, 233 ---- poppy, 235 ---- rape seed, 236 ---- sesamé, 236 ---- turpentine, 191 Oleic acid, 63 Oleomargarine, 66 ---- composition of, 67 ---- digestion of, 82 ---- effects of, 80, 81 ---- exportation of, 66 ---- manufacture of, 66 ---- photo-micrographs of, 79 ---- tests for, 70 Olive oil, 233 ---- ---- adulteration of, 233 ---- ---- American, 233 ---- ---- cotton seed oil in, 236 ---- ---- examination of, 234 Olive oil, specific gravity of, 234 ---- ---- standard for, 237 Organisms in ice, 219 ---- ---- water, 217 P.