Abstract
Summary
By means of the method of unstained cell counts both distilled water and urea were found to be more toxic to testicular cells than to lymphocytes and polymorphonuclear leukocytes. Ethyl alcohol was not cytocidal even in relatively high concentrations. The cell membrane of viable thymic, testicular and other cells appeared readily permeable to urea and ethyl alcohol but not to sodium chloride or sucrose. The addition of distilled water or freezing and thawing produced a characteristic gelatinous precipitate only in suspensions of thymic cells but not in suspensions of splenic or testicular cells.
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