ARC-Onderstepoort Veterinary Research2019-11-222019-11-221940MB170http://hdl.handle.net/2263/72375Scanned image of a photographic glass-plate negativeGraph of suction force of Eragrostic superba [tick seed grass / bosluissaadgras]. Note difference between morning and noon values at time of wilting1 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.Veterinary scienceGlass negativeSuction force grass spVeterinary medicine -- HistoryVeterinary medicine -- South AfricaVeterinary medicine -- PhotographsStill Image