INDEX. 213 



PAGE 



Milk preserved 189 



Mordants 131 



, new 133 



Nickel and cobalt 62 



alloys 63 



Niello work 84 



Nitre 102 



Nitric acid, anhydrous 102 



Nitrates 115 



Nutrition, index of 187 



Oenanthik 120 



Oil, cocoanut 158 



, whale, bleached 158 



filter 159 



, lubricating 159 



, fat, tested 160 



varnish 154 



Oily acids, recovered 162 



Oils, essential 163 



Oleics 14, 157-171 



Olive dye, from chrome 141 



Opium, test for 119 



Orchil 137-140 



Oxygen, pure 24 



Ozone 130 



Palladium, extraction of. 62 



Papaverin 119 



Paper, improved process of making 144 



, bleached, water-proof, &c 145 



Paraguay tea 186 



Parting by sulphuric acid 56 



nitric acid 57 



Pectin, pectic acid, &c 191 



Perfumery 162 



Pharmaceutics and chemicals 113-126 



Phosphatometry 197 



Phosphate of lime in basaltic rocks 195 



, composition of. 196 



, solubility of 196 



, acid salt 197 



magnesia and ammonia 197 



Photography 85-90 



on glass 89 



Photographic paper 87 



Photogenic glasses 89 



