“An Investigation of Variables in a Fecal Flotation Technique“, by M.R. O’Grady and J.O.D. Slocombe, is one of the research studies featured in the article “Icky Cutesy Research: Gills Want Fun, Collection Oil“, in the special Formulas & Recipes issue of the magazine (Annals of Improbable Research).
Read the article online. And if you like, subscribe to the magazine, and maybe even snag yourself some back issues.