'06. Studies on the germ cell of Aphids. Ibid., pub. no. 51.

Sutton, W. S.

'02. On the morphology of the chromosome group in Brachystola magna. Biol. Bull., vol. 4, no. 1.

'03. The chromosomes in heredity. Biol. Bull., vol. 4, no. 5.

Wilson, E. B.

'05. Studies on chromosomes. I. The behavior of the idiochromosomes in Hemiptera. Journ. Exp. Zoöl., vol. 2, no. 3.

'05a. The chromosomes in relation to the determination of sex in insects. Science, vol. 22, no. 564.

'05b. Studies on chromosomes. II. The paired microchromosomes, idiochromosomes, and heterotropic chromosomes in Hemiptera. Journ. Exp. Zoöl., vol. 2, no. 4.

'06. Studies on chromosomes. III. The sexual differences of the chromosome-groups in Hemiptera, with some considerations of the determination and inheritance of sex. Ibid., vol. 3, no. 1.