II. 2a. 



124 II. 7. 



M Descriptive and comparative embryology of Primates. 1. 2a. 



H P. K. CHANMUGAM 



2b. Complete development or development during special periods 

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



limbs, etc.). 



V. Development of the tetrapod-limb with special reference I. 2b. 



to Mammals (embryological evidence of their aboreal 

 origin). Amphibia, Reptilia, Aves and Mammalia. 



H. STEINER 

 K. Development and morphology of the head structures in I. 2b. 



a large number of species of reptiles, studied mainly 

 by serial sections of the forms below. 



A. d'A. BELLAIRS 

 L. Cranial ontogenesis of Spheniscus demersus. 1. 2b. 



A. W. CROMPTON 



2c. Complete development or development during special periods 

 (e.g. early, late, etc.) of cell-constituents and special substances. 



D. Study of the nucleoles of the giant cells of Diptera 1. 2c. 



(Insecta). J. MULNARD 



Early development. 



3. Implantation, placentation and development of fetal membranes. 



M. Comparative morphology of the fetal membranes. 1. 3. 



Mammalia. H. W. MOSSMAN 



M. Plazentation von Macroscelides (Insectivora) . 1.3. 



D. STARCK 

 M. Early development and implantation of mammals. 1. 3. 



Insectivora (Hominidae). F. STRAUSS 1. 2a. 



II. 2a. 

 M. Placentation of Roussetus leschenaulti (Megachirop- 1. 3. 



tera). H. FRICK 



M. The structure of the placenta of Anomalurus. 1.3. 



E. C. AMOROSO and G .R. de BEER 



4. Ovogenesis, spermatogenesis, structure of egg and sperm, 

 maturation, oviposition, fertilization (activation, partheno- 

 genesis). 



5. Cleavage. 



6. Gastrulaton. 



7. N emulation (including development of neural crest). 



V. Studies in the derivates of the neural crest with special I. 7. 



reference to dermal bone. Vertebrates. G. R. de BEER 



