On the analysis of the blood and urine, in health and disease : with directions for the analysis of urinary calculi / by G.O. Rees.

  • Rees, G. O. (George Owen), 1813-1889.
Date:
1836
Catalogue details

Licence: Public Domain Mark

Credit: On the analysis of the blood and urine, in health and disease : with directions for the analysis of urinary calculi / by G.O. Rees. Source: Wellcome Collection.

Provider: This material has been provided by The University of Glasgow Library. The original may be consulted at The University of Glasgow Library.

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    be ascertained before comminution. The mass is now to be placed on a filter, with a stream of distilled or rain water so adapted that a constant supply be afforded to wash away the red particles and serum contained in the inter- stices of the clots. This process occupies some time, and may occasionally be assisted by careful pressure, exercised by the thumb and finger. In this manner the fibrine becomes freed from its admixture, and its weight is to be taken, after careful desiccation over a water-bath. Second Portion of Crassamentum. — The se- cond portion is now to be weighed, and then thoroughly dried over a salt-water bath. It is now again to be carefully weighed, the loss of weight indicating the proportion of water com- bined with the coagulum; but since all the water of the crassamentum exists in combination as serum, we have to subtract from the weight of this solid residuum a quantity of solid matter proportional to the quantity of water, and which belongs to the serum, and not to the crassamen- tum. This is at once done; since the propor- tions of solid matter and water which compose the serum, are ascertained at the commencement of the process. After this subtraction, it