Phosphates : their chemical composition and uses in the different tissues of the body / by M.F. Anderson.

  • Anderson, M. F. (Mark French)
Date:
1877
Catalogue details

Licence: Public Domain Mark

Credit: Phosphates : their chemical composition and uses in the different tissues of the body / by M.F. Anderson. Source: Wellcome Collection.

Provider: This material has been provided by The Royal College of Surgeons of England. The original may be consulted at The Royal College of Surgeons of England.

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    land tlieir existence can be clearlj^ made out; there is probability of their existence also in the vegetable kingdom ; but as vegetable ash for the most part contains a large assortment of acids and bases, it is not an easy matter to define the exact state in which the salts exist. In the analysis of vegetable ash, or rather in the synthesis of the analysis, the saddle may be put upon the wrong horse ; but this is not likely to happen in the examination of the ash or residue of animal tissue ; for in this last the number of acids and bases is much more limited, and their synthesis is consequently rendered more easy. The different animal tissues here named have yielded the following quantities of phosphoric acid:— Tissue. Phosphoric Acid per cent. Pig Skin •147. Kidney of Pig.. •244. Brain of Pig .. •589. Lung of Pig .. •392. Brain of Sheep •752. Lung of Sheep •443. Heart of Sheep (muscular fibre) •398. Liver of Sheep CO Kidney of Sheep • ‘282. Aorta of Pig (outer coat) •167. Aorta of Pig (inner coat) •512. Aorta of Ox (middle coat) .. •192. Aorta of Ox (inner coat) •384. Aorta of Ox (inner and middle coat) •281. / Human Brain (cerebrum) .. •728. j Human Brain (cerebellum) .. •723, I Human Lung •280. (Human Kidney •327. 'Human Brain (cerebrum) .. •697. Human Brain (cerebellum) .. •482. Human Kidney •244. , Human Spleen •244. The human tissues in No. 1 were from a healthy adult, killed by an accident, those in No. 2 were from a man who died of disease. All the tissues were examined in the fresh state, and in each case 100 grammes of fresh tissue were taken. The tissue was well charred, but not reduced to ash, and the phos- phoric acid washed out with hydi’ochloric acid, and then pre- cipitated and weighed.