A guide to the physical diagnosis of the diseases of the lungs and heart : together with an introduction to the examination of the urine / by James Sawyer.
- Sawyer, James, Sir, 1844-1920.
- Date:
- 1870
Licence: Public Domain Mark
Credit: A guide to the physical diagnosis of the diseases of the lungs and heart : together with an introduction to the examination of the urine / by James Sawyer. Source: Wellcome Collection.
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![have been moulded in the ureter. When the h^emorrhaofe is from the bladder, the urine often becdmes more bloody as it flows, and there are usually symptoms indicating pretty surely the seat of the disorder. When the ha^morrhagre is from the urethra, pure blood escapes without micturition. The presence of blood in a solution may be detected by spectrum analysis. The beautiful absorption phenomena can be observed with delicacy and accuracy by means of a spectroscope, placed in connexion with a microscope.' Mr. Sorby states that a single drop of blood in a pint of urine can be detected by spectroscopic examination.t Bile.—When bile is present in the urine, as in cases of jaundice, the colour- ing matter of the bile causes the urine to assume a dark yellow, orange, dark olive, or even almost blackish colour. If a few drops of the urine be placed upon a white plate, and a drop or two of nitric acid be allowed gradually to mix with * S])cctnim Aiinlysis.—Professor Kuscoc, 1S69. ■ t Guy's Ilosjjital Reports, 1870.](https://iiif.wellcomecollection.org/image/b20402156_0243.jp2/full/800%2C/0/default.jpg)