1. 1, 



127 



I. 4c. 



F Bryozoa, Entoprocta, Brachiopoda and Hcmichordata 



G Echinodermata 



H Urochordata and Cephalochordata 



7 Further development o[ Vertebrates 



(including complete and partial — e.g. early — development) 

 a General investigations 



1 General subjects 



2 Complete development 



3 Partial development 



4 Implantation and placentation 



b Early development, gastrulation, etc. 



1 Early development 



2 Gastrulation and formation of germ layers 



3 Development of foetal membranes 

 c Neurulation, etc. 



1 Neurulation (s.s.) 



2 Development of neural crest 



3 First larval development 



d Development of part of the organism 



1 Head 



2 Limbs and wings 



3 Tail 



e Development of special organ-systems 



(Cf. general subdivision p. 124 — 126) 

 f Histo- and cytogenesis 



8 Growth and diflerentiation (Invertebrates and Vertebrates) 

 a Growth 



a/b Growth and differentiation 

 b Differentiation 



/ Theoretical problems 

 Perri, T. — d 



Tschumi, P. A.— c J 



Holmgren, N. F. — a. b V 



2 Methods and technics 

 Benoit, J. A. A. — a 

 Corner, G. W. — d 

 Ferris, W. R. — a 

 Hillemann, H. H. — e 

 Sauser, G. — c 



3 General subjects 

 (asexual development, etc.) 



Ranzi, S. — b 



Metz, C. B. — a P 



Clayton — Freedman, Mrs R. M. 



and Selman, G. G. — c J 



Sauser, G. — a M 



4 Initial development 

 a General subjects 



Benazzi, M. — a C 



Lepori, N. G. — a, b C 



Papi, F. — a C 



Leghissa, S. — a H 



Ortolani, Miss G. — b H 



Dollander, A. — d J 



Nieuwkoop, P. D. — c J 



Orlandi, Miss A. — b J 



b Primordial germ cells 



Aubry, Miss R. — a J 



Bounoure, L. — a J 

 Mangold, O. and 



Stark, O. J. — a J 



c Gameto-, ovo- and spermato- 

 genesis 



Larambergue, M. de — b B 

 Benazzi — Lentati, Mrs G. — a C 



Lehmann, F. E. — c C 



Lepori, N. G. — a, b C 



Pieragnoli, U. — a C 



