Burns 18 Carter 



b. A study of gonad modifications induced by hormones, and the reactions 

 of the gonoducts and urinogenital sinus to hormones. Didelphys vir^ 

 giniana (Marsupialia, Mammalia) 

 BUTLER, E. G. Ph.D., Sc.D., Prof. — Dept of Biol., Princeton Univ.. 

 PRINCETON, N.J., U.S.A. 



a. A study of the mechanics of the formation of the regeneration blastema. 

 The influence of nerves on blastema formation. Regression in nerveless 

 non-regenerating limbs. Amblystoma punctatum and Ambl. opacum 

 (Urodela) 



b. Blastema formation and regeneration in limbs in which proximodistal 

 polarity has been reversed. Amblystoma punctatum and Ambl. opacum 

 (Urodela) 



c. Regression (reduction) and subsequent reconstitution. Clavelina lepadi- 

 [ormis (Tunicata, Urochovdata) 



d. Effects of ultraviolet radiation on hmb development and limb regene- 

 ration. (Urodela) 



CAIRNS, J. M. Ph.D., Asst Prof. — Dept of Zool.. Univ. of Texas, 

 AUSTIN 12. Texas. U.S.A. 



a. The induction of regional characteristics of feather structure. Gallus 

 domesticus (Aves) 



b. The action of genes (frizzled and silky) in the development of the 

 feather. Gallus domesticus (Aves) 



c. Study of the differentiation of the limb structure. Gallus domesticus 

 Aves) 



CALLAN, H. G. M.A.. D.Sc, Prof. — Dept of Zool.. University. ST AN- 

 DREWS, England (U.K.) 



a. Reciprocal hybridisation with a view to studying cytoplasmic effects 

 and hybrid meiosis. Triturus vulgaris, palmatus and cristatus (Urodela) 



b. Structure of chromosomes in oocytes. Triturus cristatus carnifex (Uro- 

 dela) 



c. Morphological and physiological studies on germinal vesicle nucleus. 

 Structure and properties of nuclear membrane, sap, etc. Triturus spp., 

 Xenopus laevis (Amphibia) 



CAMBAR, R. Dr — Fac. des Sci. de Bordeaux, 40 Rue Lamartine. TA- 

 LENCE (Gironde). France. 



a. Les facteurs de la morphogenese du mesonephros. Rana, Alytes (Uro- 

 dela) 



b. Developpement du systeme pronephretique. Rana, Alytes, Hyla, Xenopus 

 (Urodela) 



CAMPENHOUT, E. van Dr, Prof. — Inst. d'Anat., Univ. de Louvain, 

 38 Rue des Recollets, LOUVAIN. Belgique. 



a. Embryological development of the innervation of the gonads. (Aves) 



b. Regeneration of the central nervous system in the embryo. Gallus (Aves) 



c. Development of the peripheral nervous system. Homo (Primates) 



d. Development of the visceral nervous system. Crocodilus (Reptilia) 

 CARR, Miss E. B. B.Sc. 12 Ardfillan Road, Catford, LONDON S.E. 6. 



England (U.K.) 



(no embryological work in progress) 

 CARTER. H. B. Dr — Wool Biol. Lab., Commonwealth Sci. and Industr. 

 Res. Org.. 17 Randle St. SYDNEY. N.S.W.. Australia. 

 (no data received over this year) 



