494 PRINCIPLES OF EMBRYOLOGY 



WADDiNGTON, c. H., AND PiLKiNGTON, R. w., 1943. JG, 45, 44. The Structure and 

 development of four mutant eyes in Dros. 

 AND SCHMIDT, G. A., 1933- RA, 128, 522. Induction by heteroplastic grafts of the 



primitive streak in birds. 

 AND siRLiN, J. t., 1954. JEEM, 2, 340. The incorporation of labelled amino-acids 



into amphibian embryos. 

 AND TAYLOR, J., 1937- JEB, 14, 335- Conversion of presumptive ectoderm to mesoderm 



in the chick. 

 AND YAO, T., 1950. JEB, 27, 126. Studies on regional specificity in the amphibian 

 organisation centre. 

 WAGNER, R. p., 1949. PNAS, 35, 185. The in vitro synthesis of pantothenic acid by 'panto- 



thenicless' Neurosopora. 

 WANG, H., 1943. pz, 16, 325. The morphogenetic functions of the epidermal and dermal 



components of the papilla in feather regeneration. 

 WEISS, p., 1930. Entivicklungsphysiologie der Tiere. Steinkopf, Dresden. 



1933. Amer. Nat., 67, 322. Functional adaptation and the role of the ground substances 

 in development. 



1935. PR, 15, 639. The so-called organiser and the problem of organisation in amphi- 

 bian development. 



1939- The Principles of Development, Holt, New York. 



1941. Growth, 3, SuppL, 163. Nerve patterns: the mechanics of nerve growth. 



1945. JEZ, 100, 353. Experiments on cell and axon orientation in vitro: the role of 



colloidal exudates in tissue organisation. 

 1947. Yale J. Biol. Med. , 19, 23 5 . The problem of specificity in growth and development 

 I949d. Differential Growth, in Chemistry and Physiology of Growth, Princeton Univ. 



Press. 

 I950fl. Genetic Neurology, Univ. of Chicago Press. 



1950^. Q. Rev. Biol., 25, 177. Perspectives in the field of morphogenesis. 

 AND HiscoE, H. B., 1948. JEZ, 107, 315. Experiments on the mechanism of nerve 



growth. 

 WEissENBERG, R., 1934. Anat. Anz., 79, 177. Untersuchungen iiber den Anlageplan beim 



Neunaugenkeim . 



1936. Anat. Anz., 82, 20. Untersuchungen iiber den Anlageplan beim Neunaugen- 

 keim II. 



WEisz, p. B., 1951. Amer. Nat., 85, 293. A general mechanism of differentiation based on 



morphogenetic studies in ciliates. 

 WETZEL, N. c, 1937. Growth, I, 6. On the motion of growth. 

 WHITE, M. J. D., 1950. The Chromosomes, 4th ed., Methuen, London. 

 1954. Animal Cytology and Evolution. 2nd ed., Camb. Univ. Press. 

 wiGGLESWORTH, v. B., 1947- The Principles of Insect Physiology. London. 



1948a. JEB, 25, I. The functions of the corpus allatum in Rhodnius prolixus. 

 1948^. SYMSEB, 2, I. The role of the cell in determination. 

 1954. The Physiology of Insect Metamorphosis, Camb. Univ. Press. 

 wiLLETT, E. L., 1953. lowa State Coll. J. Sci., 28, 83. Egg transfer and superovulation in 



farm animals. 

 wiLLL^MS, c. w., 195 1. Feder. Proc, 10, 546. Biological mechanisms in insect growth and 

 metamorphosis. 



