De Waal, H.L.Du Toit, P.J.2016-07-112016-07-1120161938De Waal, HL 1938, 'On the constitution of the bitter principle "Geigerin" I : the isolation of various degradation acids', Onderstepoort Journal of Veterinary Science and Animal Industry, vol. 10, no. 2, pp. 395-4100330-2465http://hdl.handle.net/2263/54930The articles have been scanned in colour with a HP Scanjet 5590; 300dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.Includes bibliographical referencesIn this study the author wish to record the first results already obtained on the constitution of Geigerin and to describe various degradation products obtained in oxidation or otherwise.These were very encouraging. Until more starting material has however been prepared and until further results have been obtained, the author do not wish to enter into a detailed discussion of its possible structural formula at this stage.16 pages : illustrationsen©1938 ARC - Onderstepoort and Faculty of Veterinary Science, University of Pretoria (original) ©2016 University of Pretoria. Department of Library Services (digital)GeigerinAcidsVeterinary medicine -- South AfricaArticle