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Not seen by writer.
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1910. Natural History of the Larvæ of Donaciinæ. Inter. Revue der gesamten Hydrobiol. u. Hydrog., Bd. III, Biol. Suppl., Heft I, pp. 1-108.
Buttel-reepen, H. Von. (Trans. by M. H. Geisler.)
1907. Are Bees Reflex Machines? Experimental Contribution to the Natural History of the Honey-bee. pp. 48. Medina, Ohio.
Calkins, M. W.
1905. The Limits of Genetic and of Comparative Psychology. Jour. of Psychol., Vol. I, pp. 261-285; Inter. Cong. of Arts and Sciences, St. Louis, Vol. V, pp. 712-734.
Carpenter, F. W.
1908. Some Reactions of Drosophila, with Special Reference to Convulsive Reflexes. Jour. Comp. Neurol. and Psych., Vol. XVIII, pp. 483-491.