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y swelling (similar to that met with as the result of the administration of certain poisons) is the first change observed in the parenchymatous cells of the organs of animals that have died of acute alcoholic poisoning. This condition, unless the cause is removed, goes on to a condition of fatty-degeneration, as shown in the next specimen in which we have, in addition to the granular appearance of the protoplasm of the cell, a deposition of masses of fat in and at the expense of this protoplasm. "There is another series of changes to which I wish to draw your attention. In the tubules of the kidney we have, in addition to the granular appearance of the protoplasm of the cells, an increase in the number of leucocytes, and connective tissue cells between the tubules around the glomeruli and along the course of the blood-vessels. This condition of small cell infiltration, we know, is constantly associated with inflammatory conditions of the kidney as in other organs. Here then are the changes in the epithelium plus increase in the number of leucocytes. "I show you too a specimen of heart muscle, in which the granular degeneration, or cloudy swelling is well marked whilst here and there the process is going on to fatty degeneration, similar to that seen in the kidney. Here again, then, the active elements of the organ are becoming broken down, or, at any rate, losing their normal structure and affording evidence of fundamental changes in these cells. Such changes are set up, not by any one poison alone, or by any single disease toxin, but by members of many groups of poisons, by alcohols, ethers, etc. indeed by very various poisons--animal, vegetable and mineral. "Now, it is a peculiar fact, as shown by Massart, Bordet and others, in researches on chemiotaxis, that nearly all these poisons have the power of repelling leucocytes, and of seriously interfering with them in the performance of their functions, and this power assumes a special significance in connection with our subject this afternoon. "Now, two of the great functions of leucocytes under ordinary conditions are those of policing and scavenging. Massart and Bordet showed, under the action of certain substances, alcohol amongst others, these functions are lost, but following up Metchnikoff and others t
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