. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. SPLEEN. 793 of the splenic vein of many individuals con- tained numerous golden yellow cells with diminished blood globules. In the same blood, and in the splenic pulp, there also occurred, either sparingly or in uncommon quantity, rod-shaped crystalline corpuscles, of a yellow colour, and a length of 4< to 6-100Uths of a line : at the first glance they seemed to be lying altogether free, and they were dissolved by potash (Jig. 538, b). On the application of water a membrane was upraised from these Fig. Similar
. The cyclopædia of anatomy and physiology. Anatomy; Physiology; Zoology. SPLEEN. 793 of the splenic vein of many individuals con- tained numerous golden yellow cells with diminished blood globules. In the same blood, and in the splenic pulp, there also occurred, either sparingly or in uncommon quantity, rod-shaped crystalline corpuscles, of a yellow colour, and a length of 4< to 6-100Uths of a line : at the first glance they seemed to be lying altogether free, and they were dissolved by potash (Jig. 538, b). On the application of water a membrane was upraised from these Fig. Similar Mood corpuscles from the Spleen and Splenic vein of the fresh-water Perch. a, crystals and nuclei seen on treating colourless nucleated blood corpuscles with water; b, crystals apparently free. small rods, and near them a nucleus came into view (Jig. 538, a). On more accurate in- quiry, it plainly appeared that these small rods lie in decolorized blood globules, and in unchanged blood globules the gradual form- ation of one, or even two, of these may be followed. In Barbiis Jluviatilis, the spleen pulp contains an enormous quantity of really free crystals; these are of a violet and reddish colour, and of a nail or spindle-shaped form ; and on the application of acetic acid, they are completely dissolved, leaving some colour behind. Crystals such as these also occurred sparingly in the kidneys, the liver, and the blood of tbe heart. In this animal, as well as in Ci/]>rinus brama,the blood contained yellow grannie-cells, like those which occur in the spleen and kidneys. All the rod-shaped yellow corpuscles just named (of which the first, indeed, are nothing but crystals) must in any case consist of a substance allied to the haematin of the blood ; and possibly they consist of the substance which Virchow has lately named haematoidin, with which they correspond in some respects. Their occur- rence in the spleen is physiologically inter- esting, and so also is their formation wi
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