1. (a) Firminger’s Manual of Gardening for India, 7th Edition, Revised and Edited by W. Burns, 477.
2. (b) The Treasury of Botany, 1120.
3. Latour and Magnier De la. SourceBull. Soc. Chim., 1877, (ii)28, 337.
4. PerkinProc. Chem. Soc., 1902,18, 75;J. C. S., 1913,103, 209.
5. MahalJ. I. C. S., 1938, 87.