Ilia. 2a. d. 



130 Ilia. 2b. 



Physical treatment and physical methods (d). 



LV. fitude de l'influence de la lumiere sur le developpement 

 des Vertebres inferieurs. Cyclostomes et Batraciens. 



H. F. C. DAMAS 

 J. Stage series studies and metamorphosis in relation to I. 2a. 



irradiated embryos. Triturus viridescens viridescens, Hid. 2. 



Salamandridae. R. M. ROSENBAUM V. 2. 



Chemical treatment (e). 

 G. Morphological studies on lithium-treated developing 

 sea urchin eqqs. Psammechinus miliaris. 



S. A. A. BACKSTRoM 

 H. Action of LiCl and NaSCN on the development of Illb. 2a. e. 

 Ascidia aspecsa and Styela partita (Ascidians). 



G. VANDEBROEK 



J. The effect of substituted acetic acids on the early on- 

 toqenetic development. Bufo and Rana, Anura; Triturus, 

 Urodela. S. PESONEN 



I Influence of ureum on the development. Amphibians. 



J. C. FAUTREZ 



J. L'effet de Taction de l'uraninite sur le developpement 

 de l'oeuf de grenouille, Rana esculenta. V. PREDA 



J. The influence of chloramine-compounds on the early Illb. 2a. e. 

 development (neurulation and embryo- formation) of 

 the Amphibian-egg. Triturus alpestris and Tr. taeniatus. 

 F. E. LEHMANN and P. D. NIEUWKOOP 



Complete development or development during special periods 

 (e.g. early, late, etc.) of part of the organism (e.g. head, tail, 

 limbs, etc.). 



Head. 



L. Recherches experimentales sur le developpement de la 

 tete chez le Poulet (face et systeme nerveux). Gallus 

 domesticus. W. HUBER et E. WOLFF 



Limbs. 



J. Symmetry relations in developing limbs. Amblystoma Ilia. lb. 

 punctatum. W. A. STULTZ 



J. Development of limbs of Amphibia with reference to the 

 roles played by ectoderm and mesoderm. Various 

 species of Amblystoma. R. G. HARRISON 



J. Ricerche sull'indizione di arti soprannumerari mediante 

 trapianti di parti di ibridi o di embrioni irradiati con 

 raggi X. Bufo vulg., viridis and Rana esculenta. 



T. PERRI 

 Inter-relationships between the development of limbs Ilia. 9. 



and the central and peripheral nervous systems. Am- 

 blystoma punctatum. W. A. STULTZ 



J. Chemische Beeinflussung der Extremitatenbildung von 

 Xenopus. P. TSCHUMI 



L. Study of the differentiation of the limb structure. IIIc. 2. 



Gallus domesticus. J. M. CAIRNS 



