Letch; Linstead Journal of the Chemical Society, 1932 , p. 445,453 Journal of the Chemical Society, 1933 , p. 613 Full Text Show Details Glynn; Linnell Quarterly Journal of Pharmacy and Pharmacology, 1932 , vol. 5, p. 500 Chem. Zentralbl., 1933 , vol. 104, # I p. 605