1. Bonnier, G., and Lüning, K. G., Hereditas, 37, 469 (1951). Bonnier, G., Brit. J. Rad., 25, 180 (1952). Bonnier, G., Lüning, K. G., and Arnberg, B., Hereditas, 38, 109 (1952).
2. Henshaw, P. S., Amer. J. Roent., 43, 907 (1940).
3. Harold, F. B., Robinson, J. C., and Loos, G. M., Proc. U.S. Nat. Acad. Sci., 36, 623 (1950).
4. Tazima, Y., Rep. Co-ord. Reserch Genet., 2, 153 (1951). Tazima, Y. (unpublished). Nakao, Y. (unpublished). Murati, K. (unpublished).
5. Tazima, Y., “Mosaicisms in the Silkworm” (in Japanese, Tokyo, 1947).