E. Bugnion : La différenciation des castes chez les termites (Bull. Soc. Entom., France, 213-18).
Dr Imms : On the structure and Biology of Archotermopsis.
Kurt von Rosen : Die fossilen Termiten (Transact. 2d entom. Congress, 1912),
L. R. Cleveland : Symbiosis among animals with special Reference to Termites and their intestinal Flagellates. (Quat. rev. of Biol., vol. I, no 1, janvier 1926).
L. R. Cleveland, 1923 : Correlation between the food and Morphology of termites and the presence of intestinal protozoa (Amer. Journ. Hyg., 3, 444-461).
L. R. Cleveland, 1924 : The physiological and symbiotic relationships between the intestinal protozoa of termites and their host, with special reference to Reticulitermes flavipes Kollar (Biol. Bull., 46, 177-225).
L. R. Cleveland, 1925 a. : The ability of termites to live perhaps indefinitely on a diet of pure cellulose (Biol. Bull., 48, 289-293).
L. R. Cleveland, 1925 b. : The effects of oxygenation and starvation on the symbiosis between the termite, Termopsis, and its intestinal flagellates (Biol. Bull., 48, 309-327).
L. R. Cleveland, 1925 c. : The toxicity of oxygen for protozoa in vivo and vitro : animals defaunated without injury (Biol. Bull., 48, 455-468).
L. R. Cleveland : The Method by which Trichonympha Campanula, a protozoon in the intestine of Termites, ingest solid particles of wood for food (Biol. Bull, vol., no XLVIII, avril 1925).