Synopsis
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Présentation de l'éditeur
The results of much of this work have already been published as papers in various scientific journals. A list of these papers follows and an abstract of each one of them may be found in the Appendix to the present paper. (with R. G. Bell) Notes on Insect Bionomics, in Jour. Exper. Zool, v. i, pp. 357-367 A ugust, 1904. (with R. G. Bell) Variations Induced in Larval, Pupal and Imaginal Stages of Bombyx mori by Controlled Varying Food Supply, in Science, N. S. v. 18, pp. 741-748, Dec., 1904. Regeneration in Larval Legs of Silkworms, in Jour. Exper. Zool., v. i, PP- 593-599, 10 figs., Dec., 1904. Influence of Primary Reproductive Organs on Secondary Sexual Characters, in Jour. Exper. Zool., v. I, pp. 601-605, Dec., 1904. Some Silkworm Moth Reflexes, in Biol. Bull., v. 12, pp. 152-154, Feb., 1907. Sex Differentiation in Larval I nsects, in Biol. Bull., v. 12, pp. 380-384, 8figs., May, 1907. Artificial Parthenogenesis in Silkworms, in Biol. Bull., v. 14, pp. 15-22, Dec., 1907. At the same time that these miscellaneous studies in silkworm biology were begun, a series of planned and controlled rearings was started (one generation a year) to test the behavior in heredity of fluctuating and sport variations of larvae, cocoons and adults. Also experiments and rearings were carried on to test structural and physiological modifications which might be induced by varying food supply (both as to character and quantity) and the possible inheritance of these modifications. From 1904 on the work has been turned chiefly to a study of the modes of inheritance of various racial characters of eggs, larvae and cocoons, involving controlled pure and hybrid matings of individuals of some fifteen races. This study of heredity has served to test, for the silkworm, the Mendelian principles of inheritance, as well as the actuality of the potency in heredity of vigor, of sex, and of spec
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