A Treatise on Pharmacy for Students and Pharmacists

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Lea & Febiger, 1916 - Pharmacy - 929 pages

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Page 74 - ... the ratio of the ovendry weight of a sample to the weight of a volume of water equal to the volume of the sample at some specific moisture content, as green, air-dry, or ovendry.
Page 98 - Physicists express this latent heat of fusion in terms of calories, the word calorie being used to designate the amount of heat necessary to raise the temperature of 1 gram of water from 0 C.
Page 782 - Piperita, rectified by steam distillation, and yielding not less than 5 per cent of esters, calculated as menthyl acetate (Ci0HigC2H3O2), and not less than 50 per cent of total menthol (Ci0Hi9OH), free and as esters.
Page 883 - A proteolytic ferment or enzyme obtained from the glandular layer of fresh stomachs from healthy pigs, and capable of digesting not less than 3000 times its own weight of freshly coagulated and disintegrated egg albumen, when tested by the process given below.
Page 884 - Rennin The partially purified milk-curdling enzyme obtained from the glandular layer of the stomach of the calf, Bos taurus Linn6 (Fam.
Page 322 - ... menstruum to saturate the powder and leave a stratum above it. When the liquid begins to drop from the percolator, close the lower orifice, and, having closely covered the percolator, macerate for forty-eight hours. Then allow the percolation to proceed, gradually adding menstruum, until the hydrastis is exhausted.
Page 428 - Water, and, having digested the mixture for a short time, treat it as before, and add the product to the pulpy liquid first obtained. Then, by means of a water-bath, dissolve the Sugar in the pulpy liquid, and evaporate the whole until it weighs eighty-four troyounces.
Page 861 - Rinse the flask and contents with 15 cc. of ether, and, when the ether has passed through, wash the funnel and cotton with a small quantity of ether and then pour the aqueous liquid into the funnel without trying to remove the crystals. Wash the crystals in the flask and the contents of the funnel with distilled water previously saturated with morphine, until the washings are colorless. Then add a few drops of distilled water to replace the morphinated water. Incline the edge of the funnel over the...
Page 881 - ... capable of converting not less than 25 times its own weight of starch into substances soluble in water.
Page 555 - Dilute hydrochloric acid is an aqueous solution containing not less than 9.5 per cent nor more than 10.5 per cent of HC.

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