ARC-Onderstepoort Veterinary Research2019-09-272019-09-271950PE79NT50http://hdl.handle.net/2263/71473Scanned image of a photographic glass-plate negativeDamaged - No image when scanned, only signature visibleSignature of Dr J.I. Quin, veterinarian / physiologist of the Onderstepoort Veterinary Institute. He was a member of the 1st class of students to graduate from the newly created veterinary faculty at Onderstepoort. He was a staff memebr at the Onderstepoort Veterinary Institute from 1926 - 1950. Will probably best be remembered for determining with Rimington that the photodynamic agent in hepatogenous photosensitizations (such as geeldikkop and Lantana poisoning) was phylloerythrin, a degradation product of chlorophyll.1 photo : black and whitePDFOriginal medium: Glass-plate negative©2019 ARC- Onderstepoort Veterinary Research (Original) , University of Pretoria (Digital). Provided for educational purposes only. It may not be downloaded, reproduced or distributed in any format without written permission of the original copyright holder. Any attempt to circumvent the access controls placed on this file is a violation of copyright laws and is subject to criminal prosecution. Please contact the collection administrator for copyright issues.Glass negativeVeterinary scienceVeterinary medicine -- HistoryVeterinary medicine -- South AfricaVeterinary medicine -- PhotographsSignature of Dr John Isaac Quin : Onderstepoort staffStill Image