| Description | Notes and structural formulas, mostly by Robert Robinson, with a note by A F Thomas [who published collaborative papers with Robinson on the subject between 1953 and 1955]. The file also contain a report entitiled 'Extraction of Picralima nitida, collected in Kumasi, August 1947', no authoer given but incribed in Robinson's hand with a note that it came 'From the CIBA laboratories'. |