. Urinary deposits : their diagnosis, pathology, and therapeutical indications. Fig. 19. MICROSCOPIC CHARACTERS. 131 urate of soda and acetic acid be placed whilst boilinghot on a plate of glass, and be suddenly cooled bytouching it with a glass rod, rhombic prisms arerapidly deposited, and grow up to a certain point,when on a sudden they become opake, and split intominute rectangular parellelopipedons. 127. Coarse, and deep orange or red, sand is gene-rally composed of cohering crystals, forming, indeed,minute calculi. Two varieties of these are frequentlymet with, one formed (Fig. 20) of coh
. Urinary deposits : their diagnosis, pathology, and therapeutical indications. Fig. 19. MICROSCOPIC CHARACTERS. 131 urate of soda and acetic acid be placed whilst boilinghot on a plate of glass, and be suddenly cooled bytouching it with a glass rod, rhombic prisms arerapidly deposited, and grow up to a certain point,when on a sudden they become opake, and split intominute rectangular parellelopipedons. 127. Coarse, and deep orange or red, sand is gene-rally composed of cohering crystals, forming, indeed,minute calculi. Two varieties of these are frequentlymet with, one formed (Fig. 20) of cohering, thick,rhomboidal prisms, and the other of aggregatedlozenges in spinous masses. The latter are most fre-quently found where a marked tendency to the forma-tion of calculi exists (Fig. 21). It is not unfrequentto find these masses crystallised on a hair, just as sugar- & i .?#£* Fig. Fig. 21. candy is crystallised on a string or thread. Whenvery hastily deposited by the sudden cooling of theurine, or by the addition of a strong acid, uric acid issometimes precipitated in irregular masses, resemblingon microscopic inspection irregular fragments of yellowquartz ; this, however, is unfrequent, and is the only 132 PATHOLOGY OF URIC ACID.
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Keywords: ., bookcentury1800, bookdecade1850, booksubjecturinary, bookyear1853
