. Cooley's cyclopaedia of practical receipts and collateral information in the arts, manufactures, professions, and trades including medicine, pharmacy, hygiene, and domestic economy : designed as a comprehensive supplement to the Pharmacopoeia and general book of reference for the manufacturer, tradesman, amateur, and heads of families. (Beale.) Urate of sodium is, however, much more com-mon in the urine of children than of adults,when it presents itself in the form of sphericalcrystals. In both cases the urates are associated withuric acid (resulting from their partial decompo-sition), repre
. Cooley's cyclopaedia of practical receipts and collateral information in the arts, manufactures, professions, and trades including medicine, pharmacy, hygiene, and domestic economy : designed as a comprehensive supplement to the Pharmacopoeia and general book of reference for the manufacturer, tradesman, amateur, and heads of families. (Beale.) Urate of sodium is, however, much more com-mon in the urine of children than of adults,when it presents itself in the form of sphericalcrystals. In both cases the urates are associated withuric acid (resulting from their partial decompo-sition), represented by the small spiked crystals 1700 URINE protruding from the spheres in the form ofneedle-shaped crystals. Urate of sodiumoccurs as the concretions known as chalkstones in gout. But hy far the most abund-ant kind of urates met with in abnormal urineis that known as amorphous urates, which. ^0 ^^^ *3 WC&L. Urate of soda in a globular form commonly found inthe uriue of children. constitute the most common variety of urinarydeposits. Heintz states that they are a mixture ofurate of sodium with small quantities of theurates of ammonium, lime, and are very frequently seen ia the urine ofpersons in excellent health, in which, owingperhaps to too abundant or nitrogenous dietand an insufficiency of muscular exercise, beingin excess, they are thrown down when theurine cools. An excess of the amorphous urates in urine,like the presence of pus and phosphates, isindicated by the bulky precipitate more orless diffused throughout the vessel containingthe urine. A very easy test will decide as towhich of the three classes of substances (ifonly one of them be present) the precipitatebelongs. The supernatant fluid being de-canted from the deposit, about an equal bulkof liquor potassas is added to the latter, whenone of three results will ensue: 1. If it be pus, and be
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