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The author devotes the first three chapters of his work to a somewhat minute consideration of the physical characters of normal urine, pointing out the clinical significance of the usual variations therefrom. He next considers the forms of proteids found in the urine, dealing more in detail with peptonusia, its cause, significance, and the most reliable methods of its detection. He suggests that peptones may appear in the urine through failure of their precipitation on the duodenum, as by their excess after a heavy meal, or through a deficiency or excess of bile; the latter being the normal precipitating agent.
The succeeding four chapters are devoted to qualitative and quantitative estimation of albumin in the urine by means of proper tests, which were first introduced by the author over two years ago. Brief hints are also given on the clinical significance of albuminuria. Of the test papers for albumin, the
Bedside Urine-Testing; A Clinical Guide to the Observation of Urine in the Course of Work. JAMA. 1885;V(4):111. doi:10.1001/jama.1885.04470020027012