In the splenectornized dog the anemia caused by hemolytic poisons (hemolytic immune serum and sodium oleate) and by bleeding is of a severer grade, runs a longer course, and is accompanied by a less rapid regeneration of the blood than is the case in the normal dog. Also in the splenectomized dog, especially after the use of hemolytic serum, the leucocytosis is greater than in the normal animal.

The splenectomized dog almost uniformly exhibits an increased resistance of the red cells to hypotonic salt solution, but after the administration of hemolytic poisons, and especially hemolytic serum, this increased resistance disappears and a decreased resistance persists for long periods of time. The same change occurs in the normal dog, but in the latter the return to the previous degree of resistance is more rapid than in the splenectomized animal.

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