1. On the pigment of the Negro's skin and hair Author(s): Abel, John Jacob, 1857-1938 Publication: [New York?] : D. Appleton and Company, c1896 Subject(s): PigmentationAfrican Continental Ancestry Group
2. On the appearance of carbamic acid in the urine after the continued administration of lime water, and the fate of carbamic acid in the body Author(s): Abel, John Jacob, 1857-1938 Publication: [Baltimore? : s.n., 1894?] Subject(s): Carbamates -- urineCalcium Compounds -- pharmacology
3. A contribution to our knowledge of organic sulphur compounds in the field of animal chemistry Author(s): Abel, John Jacob, 1857-1938 Publication: [Baltimore? : s.n., 1894?] Subject(s): Sulfur Compounds -- chemistryUrinalysisAnimals
