212 INDEX. 



PAGE 



Inks, indelible and printing 143, 144 



Iodine, extraction of..... 114 



, photographic use of 86 



, chloride of. 114 



lodohydric acid 115 



Iodide of potassium on lead 115 



Iron ores and metal 40 



, vanadium and arsenic in 41 



, alkalimetric test of. 41 



reduced in retorts 43 



, cast, steel, and bar 42—45 



, and bar, soldered 69 



protected from rust 42 



, coppered 48 



, enamelled 68 



, persulphate of. 131 



Ivory, hardened, softened, etched, &c 148 



Kamptulicon 150 



Lactometrt 202 



Lacquers 153, 154 



Lead, quantity produced in Great Britain 49 



, alkalimetric test for 49 



, reduction in the wet way 83 



pipe, influence of water on 185 



pigments 108 



mordants 132 



Leading copper and iron 83 



Leather varnish ♦ 154 



Lemons, oil of 128 



Light, action on starch and iodide of lead 86 



Linen distinguished from cotton 128 



and cotton, tanned 129 



Linseed oil decolorized 159 



Lubricating oil 159 



Madder 133-136 



Malt liquors, ashes of 184 



Manganese vitriol 104 



Manures, mineral, influence on plants 193 



, organic 198 



Meat, cooking 187 



Mercury ore 51 



, purification of 51 



■• distilled by steam 52 



, black sulphuret of. 118 



Metallurgy 12, 39-90 



