Researches on the microflora of cave clay sediments were carried out. The study of these micro-organisms necessitates the use of an enlargement of the order of 5,000. For this purpose the organisms were separated from the clay sediments by the foam flotation technique, followed by cultivation. Morphologically they can be divided into 5 types but together they form a group sufficiently homogeneous to justify their provisional grouping as the “Microfusiformetum.” Experiments with enriched cultures from several sediments have shown that certain of the micro-organisms were indigenous, others were accidental inhabitants.
Essai sur une étude au microscope électronique de la microflore des sédiments argileux de cavernes (A preliminary study using an electron microscope, on the microflora of cave clay sediments).
International Journal of Speleology,
Available at: https://scholarcommons.usf.edu/ijs/vol1/iss1/1