On the analysis of the blood and urine, in health and disease : and on the treatment of urinary diseases / by G. Owen Rees.

  • Rees, G. Owen, (George Owen), 1813-1889.
Date:
1845
Catalogue details

Licence: Public Domain Mark

Credit: On the analysis of the blood and urine, in health and disease : and on the treatment of urinary diseases / by G. Owen Rees. Source: Wellcome Collection.

Provider: This material has been provided by King’s College London. The original may be consulted at King’s College London.

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    is absolutely necessary, for the purpose of rendering the albumen entirely insoluble in boiling water ; indeed, it has been stated, that a heat of 225° is necessary for that purpose ; but this is not the fact, as will be found on experiment, particularly if the serum be thoroughly dried, and then treated, while warm, with water at 212°. Filtration. — Considerable care is requisite in performing this operation; fine white bibulous paper should be used, and the filter washed with distilled water before it is applied to the purposes of analysis. After the fluid we are operating upon may have passed through the filter, it often becomes necessary to perform many ablutions of the filter, in order to wash out from the paper all the fluid for analysis: these washings are, of course, to be added to the first-filtered liquor, and evaporated with it in continuing the examination. When pouring from any vessel into a filter, the lip of such vessel should be kept perfectly dry, otherwise the fluid may, after passing the lip, run backwards to the bottom of the vessel, and thus be lost. Another excellent method of avoiding this evil, consists in applying the side of a glass rod, moistened with distilled water, to the lip of the vessel, and pointing it upon the filter. These may seem trifling cir- cumstances to dilate upon, but persons who are accustomed to manipulation are well aware of the value of such remarks to the uninitiated. Incineration. — Constant attention is necessary in this process, and much tact requisite in placing