1. ELLIS, S, FEDERATION PROCEEDINGS 10: 292 (1951).
2. FELLOWS, E.J., The pharmacology of certain furfuryl and tetrahydro-furfuryl ammonium iodides, JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS 68: 231 (1940).
3. GOURZIE, J. T., JOURNAL OF PHARMACOLOGY AND EXPERIMENTAL THERAPEUTICS 101: 14 (1951).
4. LOCKETT, M.J., SOME PHARMACOLOGICAL ACTIONS OF PIPERIDINE, PYRROLIDINE, AND OF PRESSOR CONCENTRATES FROM DOG URINE, BRITISH JOURNAL OF PHARMACOLOGY AND CHEMOTHERAPY 4: 111 (1949).
5. VON EULER, U. S., ACTA PHARMACOLOGICA ET TOXICOLOGICA 1: 29 (1945).