1. Beadle, G. W.: The inheritance of the color of the Malpighian tubes inDrosophila melanogaster. Amer. Naturalist71, 277?279 (1937).
2. Boyd, W.: Textbook of Pathology London: H. Kimpton 1947.
3. Brehme, K. S., andM. Demerec: A survey of Malpighian tube colour in the eye colour mutants ofDrosophila melanogaster. Growth6, 351?355 (1942).
4. Brncic, D.: Un nuevo tumor hereditario de laDrosophila melanogaster tu49h. Biologia11, 11 (1949).
5. Burdette, W. J.: Tumors and mutations inDrosophila. Texas Rep. Biol. a. Med.8, 123 (1950).