**Original article:** Silberbauer, M.J. and King, J.M., 1991. Geographical Trends in the Water Chemistry of Wetlands in the South-Western Cape Province, South Africa. Southern African Journal of Aquatic Sciences, 17 (1/2), 82–88. **PDF URL:** [Silberbauer-2020.pdf](https://github.com/ReScience/submissions/files/4522154/ReScience_C_Silberbauer_2020_5d.pdf) **Metadata URL:** http://www.riv.co.za/wv/data/Silberbauer-2020.yaml **Code URL:** https://archive.softwareheritage.org/browse/origin/https://github.com/MikeSilberbauer/maucha-ionic-diagram.git/ **Scientific domain:** Aquatic Science **Programming language:** Turbo Pascal **Suggested editor:**