Abstract
1. Under the conditions of the above described experiments, acid violet, auramine, sodium salicylate, 8-oxyquinoline sulfate, auramine G and salicylic acid did not show carcinogenic activity.
2. No marked change in internal organs was found in the rats, hamsters and mice under the conditions of the respective experiments. It may be noted, however, that auramine produced some degeneration of liver cells in mice and salicylic acid a mild atrophy of spleen in rats.
