792 PATTERNS AND PROBLEMS OF DEVELOPMENT 



19380. Some aspects of normal development in the colonial ciliate, Zoothamnium al- 

 tcrnans. Biol. Bull., 74. 1938b. Form regulation in Zoothamnium alternans. Ibid. — 

 Sumner, F. B. 1903. A study on early fish development. Arch. Entw'mech., 17. — 

 Sun, K. H., and Pratt, K. C. 1931. Do earthworms grow by adding new segments? 

 Amer. Naturalist, 65. — Surface, F. M. 1907. The early development of a polyclad, 

 Planocerainquilina. Proc. Acad. Nat. Sci. Phila., 59. — Suster, P. 1933. Fiihlerregen- 

 eration nach Ganglienexstirpation bei Sphodromantis hioculata Burm. Zool. Jahrb. Abt. 

 allg. Zool., 53. — Svetlov, P. 1934. tjber die Regeneration wahrend der Entwicklung. 

 Arch. Entw'mech., 131. — Swett, F. H. 1923. The prospective significance of the cells 

 contained in the four quadrants of the primitive limb disc of Ambly stoma. Jour. Exp. 

 Zool., 38. 1924. Exceptions to Bateson's rules of minor asymmetry. Anat. Rec, 28. 

 1926. On the production of double Hmbs in amphibians. Jour. Exp. Zool., 44. 1927. 

 Differentiation of the amphibian limb. Ibid., 47. 1928a. Further experiments on the 

 determination of the mediolateral axis of the fore limb of Amblystoma punctatum 

 (Linn.). Ibid., $0. 1928b. Transplantation of divided limb rudiments in .4 w?Wy5/w«a 

 punctatum (hinn.) . Ibid., s^. 1928c. Relations of symmetry in double limbs. 76/(f. 1930. 

 The permanence of limb-axis polarity. Ibid., S5- 1932. Reduplication in heteroplastic 

 limb grafts. Ibid., 61. 1937a. Experiments upon delayed determination of the dorso- 

 ventral limb-axis in Amblystoma punctatum (Linn.). Ibid.,-]$. 1937b. Determination 

 of limb-axes. Quart. Rev. Biol., 12. 1938a. Experiments designed to hasten polariza- 

 tion of the dorsoventral limb-axis in Amblystoma punctatum. Ibid.,'j8. 1938b. Experi- 

 ments upon the relationship of the surrounding areas to polarization of the dorsoven- 

 tral limb-axis \n Amblystoma punctatum. Ibid., 78. 1938c. Further experiments upon 

 axial polarization in the embryonic limb rudiment of the salamander. Abstr. Amer. 

 Soc. Zool., Anat. Rec, 72, Suppl. 4. 1939. Further experiments upon the establish- 

 ment and the reversal of prospective dorsoventral limb-axis polarity. Jour. Exp. Zool., 

 82. 



Takaya, H. 1936. Combination of two limb rudiments in urodele, Triturus with 

 special reference to their symmetry relations. Mem. Coll. Sci. Kyoto Imp. Univ., B, 

 12. 1938. Transplantation of limb-discs of varying size. Ibid., 14. — Tanaka, S. 1934. 

 Glycogen distribution in amphibian embryos. Proc. Imp. Acad. Tokyo, 10. — Tann- 

 reuther, G. W. 1907. History of the germ cells and early embryology of certain aphids. 

 Zool. Jahrb. Abt. Anat. Ont., 24. — Taylor, C. V. 1928. Protoplasmic reorganization in 

 Uronychia uncinata sp. nov. during binary fission and regeneration. Physiol. Zool., i. 

 1931. Polarity in normal and centrifuged eggs of Urechis caupo. Ibid., 4. Taylor, C. V., 

 and Tennent, D. H. 1926. Experimental modifications of polarity in marine ova. 

 Science, 64. Taylor, C. V.; Tennent, D. H.; and Whitaker, D. M. 1926. An experimen- 

 tal study of organization in the egg. Abstr. Amer. Soc. Zool., Anat. Rec, 34, Suppl. 

 — Tennent, D. H. 1931. The maturation of the egg of the sea urchin, Mespilia globulus. 

 Abstr. Nat. Acad. Sci., Science, 74. Tennent, D. H.; Taylor, C. V.; and Whitaker, 

 D. M. 1929. An investigation on organization in a sea urchin egg. Carnegie Inst. 

 Publ. 391. — Tepliakova, M. J. 1937. Ontogeny of the cell and the problem of develop- 

 mental mechanics. VIII. Biol. Zhurnal, 6. — Theel, H. 1901. On a singular case of 

 hermaphroditism in holothuroids. Bihang K. Sv. Vet. Akad., Hdl. 27. — Thimann, 

 K. V. 1935. Growth substances in plants. Ann. Rev. Biochem., 4. Thimann, K. V., 

 and Bonner, J. 1938. Plant growth hormones. Physiol. Rev., 18. Thimann, K. V., 



