II. 1. 131 11. 4a. 



c Determination of primitive development 

 d Development of part of the organism (head) 

 e Development of special organ systems 

 (Cf. general subdivision p. 121 — 123) 

 f Histo- and cytogenesis 



7 Further development of Vertebrates 

 a General investigations 



1 General subjects 



2 Complete development 



3 Partial development 



4 Implantation and placentation 

 b Topogenesis 



1 Early development 



2 Gastrulation and formation of germ layers 



3 Neurulation 



4 Formation of neural crest 



5 First larval development 



c Induction, determination, etc. 



1 Induction 



2 Determination 



3 Regulation and organisation 



d Development of parts of the organism 



1 Head 



2 Limbs and wings 



3 Tail 



e Development of special organ systems 



(Cf. general subdivision p. 121 — 123) 

 f Histo- and cytogenesis 



8 Growth and differentiation (Invertebrates and Vertebrates) 

 a Growth 



a/b Growth and differentiation 

 b Differentiation 



CHARACTER OF INVESTIGATION 



(4) Physical treatment 



(5) Chemical treatment 



(6) Influence of hormones and vitamins 



1 Theoretical problems 

 Yamada, T. — a V 



2 Methods and technics 



Beatty, R. A. — b 



Benoit, J. A. A. — b I 



Mookerjee, S. and 



Sanyel, S. — c J 



Nieuwkoop, P. D. — h L 



Williams, R. G. — a M 



3 General subjects 

 (asexual development, etc.) 



