Abstract
The normal red blood cell count, white blood cell count. Hb value and differential blood cell count and volume of packed red blood cells of 23 normal [male] cats and 16 normal [female] cats were detd. The red blood cell count and Hb value and volume of packed red blood cells of the [male][male] were significantly higher than those of the [female][female]. Adrenalectomized cats and dogs when well maintained showed an essentially normal blood picture regardless of the type of treatment they were receiving. In some cases with desoxycorticosterone acetate therapy there was definite evidence of hemodilution. In the adrenalectomized cat showing mild symptoms of adrenal insufficiency slight hypoplasia of the bone marrow and hemoconcentration were noted. In the terminal stages of adrenal insufficiency marked hypoplasia of the bone marrow was usually found. In several cases a marked decrease in the percentage of neutrophils was also observed.