1. Mutual size regulation between eyeball and lens in Amblystoma, studied by means of heteroplastic transplantation;Ballard;J. Exp. Zool,1939
2. Investigations on the protein constituents of nerve axoplasm;Bear;Proc. Roy. Soc. London, Ser. B,1937
3. Bernal, J. D. Structural units in cellular physiology, in The Cell and Protoplasm. Publ. Am. Assoc. Adv. Sci. No. 14, 199, 1940.
4. Cellular differentiation and tissue culture;Bloom;Physiol. Rev.,1937
5. Embryologie Chimique;Brachet,1944