I. 8a. 130 I. 8a/b. 



Lcgrand. J.-J. — c D Balinsky. B. I. — a M 



Risler, H. — a D a^b Growth and differentiation 



Deroux G. and Bonner. J. T. — b Plants 



Devillers S. ' "" ^ 1 Berrill. N. J. — a B 



Lehmann, F E. — a J Ramult. M. — a C 



Wallmann Miss S. — a J (^j^^t n. D. — a D 



Balinsky, B I — a J j^^^^ B. M. ^ a D 



Blechschmidt. E .— a M Wallace, D. R. J. — a D 



^""u^ ^- ~ tr V; Blechschmidt. E. — b, c M 



Rollhauser, H. — a M 



II. EXPERIMENTAL DEVELOPMENTAL MORPHOLOGY 



SUBDIVISION 



/ Theoretical problems 



2 Methods and technics 



3 General subjects (asexual development, etc.) 



4 Initial development 



a Primordial germ cells 



b Ovogenesis and spermatogenesis 



c Maturation 



d Ovulation and oviposition 



e Activation and fertilization 



f Parthenogenesis 



g General subjects 



5 Cleavage and mitosis 

 a Cleavage 



b Mitosis 



6 Further development of Invertebrates 



a General subjects (complete development) 



b Topogenesis 



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 Ncurulation 



4 Formation of neural crest 



5 First larval development 



c Induction, determination, etc. 



1 Induction 



2 Determination 



