A probationary essay on the formation and solution of urinary calculi / [John Murray].

  • Murray, John, 1798-1873.
Date:
1826
Catalogue details

Licence: Public Domain Mark

Credit: A probationary essay on the formation and solution of urinary calculi / [John Murray]. Source: Wellcome Collection.

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    when heated, dissolves it, producing the deep red colour characteristic of uric acid. The urate or lithate of ammonia calculus is g'cnerally of a clay colour, with a smooth and somewhat tuherculated surface. It is an uncom¬ mon species, and seldom of any considerable mag¬ nitude. It is more soluble than the lormer in water, and in the alkaline carbonates. - 2r/, The Ammomaco-magnesian Phosphate is scarcely ever found to form a calculus alone ; but is commonly intermixed with some other ingredient, usually with phosphate of lime. It is easily dis¬ tinguished from the first species by its pure white colour, and the closeness and fineness of its tex¬ ture. It is smooth, soft, and friable, and when sawn, gives a fine light powder, of a brilliant whiteness, which dissolves partially in the mouth, communicating a sweetish taste. It is insoluble in alkalis, but easily soluble in acids. Mr BiiANDE justly observes, that the urine has at all times a tendency to deposit the triple phosphate upon any body over which it passes, hence drains by which urine is carried off are often en¬ crusted with its regular crystals; and in cases where extraneous bodies have entered the bladder,
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