The American journal of the medical sciences . d, viz., a purple colour. Dissolved in nitric acid and treatedwith chloride of platinum for potash, yellowish octohedra of chloride of pla-tinum and potash, not polarizing light, were formed. The deposit was flocculent, and of a light-pink colour; no other abnormalingredient was found in the urine, except a small quantity of the ammonia-magnesian phosphate, and a very few torulse, which were probably of acci-dental occurrence. The patient from whom the urine came was a young man who had com-plained of general debility and loss of appetite, without
The American journal of the medical sciences . d, viz., a purple colour. Dissolved in nitric acid and treatedwith chloride of platinum for potash, yellowish octohedra of chloride of pla-tinum and potash, not polarizing light, were formed. The deposit was flocculent, and of a light-pink colour; no other abnormalingredient was found in the urine, except a small quantity of the ammonia-magnesian phosphate, and a very few torulse, which were probably of acci-dental occurrence. The patient from whom the urine came was a young man who had com-plained of general debility and loss of appetite, without any well-markedsymptoms of any disease, for several weeks. This form of urate of potash can be artificially obtained by the union ofuric acid and potash in large quantities, and crystallization from hot water. L 382 Shaw, A peculiar form of Uric Acid in Urine. [Oct. I am not aware tbat it has ever been seen in urine. Indeed, any form ofurate of potash is rare. The accompanying figures represent these crystals magnified 350 diameters. Fig. 350 diameters. Art. IX.—A peculiar form of Uric Acid in Urine. By Benjamin S. (With wood-cuts.) Shaw, M. D., of Boston. On examining a deposit in urine, I found a peculiar form of uric were large ovoid disks, thin and very transparent, of a pinkish tingewhen in a drop of urine, and yellowish when dry. They refracted lightstrongly, were seen to be disks when revolving in a fluid, and measured onan average of a millimetre in their long diameter, and of a mil-limetre in their short diameter. They polarized light beautifully, showing aseries of concentric circles, making it probable that their structure is zeolitic,although no trace of needles or any internal structure could be some the disks were not perfect, both extremities being wanting. Whentreated with boiling water they dissolved, and on cooling were precipitated ascrystals of uric acid of common and well-known forms, polarizing light, andpresentin
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Keywords: ., bookcentury1800, bookdecade182, booksubjectmedicine, bookyear1827
