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1 From the Department of Pharmacology, College of Physicians and Surgeons, Columbia University, New York
1. The staining reaction for aldehydes with fuchsin sulfurous acid is described for liver and kidney tissues of 5 species of animals.
2. The formation of condensation products (Schiff's base) between tissue aldehydes and various amines and the influence of hydrogen ion concentration is described.
3. The significance of the formation of Schiff's base as a detoxification mechanism and the interference of p-amino benzoic acid with the antiseptic powers of the sulfonamides is discussed.
Submitted on October 13, 1943