IV. 1 



IV. 2a 



3 Analysis of influence of special genes and mutants 



a Special genes and mutants 

 b Lethal factors 



4 Phenocopies 



CHARACTER OF INVESTIGATION 



( 1 ) Metabolism and respiration 



(2) a) Biochemistry, b) Histochemistry, c) Cytochemistry 

 (4) Physical treatment 



(6) Influence of hormones and vitamins 



1 Theoretical problems and 



general questions 



Landauer, W. — e 

 Runner, M. N. — d 



2 General genetic al studies 



a General studies 



Agrell, I. P. S. — b 

 Anders, G. — a 

 Kerr, N. S. — b 

 Nagarajan, S. N. — a 

 Benazzi, M. — a 

 Hauenschild, C. — a 

 Masetti Zannini, Miss A. — 

 Papi, F. — a 

 Astaurov, B. L. — d 

 Baffoni, G. M. — c 

 Bantock, C. R. — a 

 Barigozzi, C. — a 

 Borstel, R. C. von — a 

 Charniaux (Cotton), Mrs. H. 

 Chovnick, A. — c, d 

 Counce, Miss S. J. — c 

 Ede, D. A. — a 

 Geyer (Duszynska), 



Mrs. I. — a, b, c 

 King, R. C. — a 

 Kroeger, H. — a, b 

 Ludwig, D. — c 

 Matuszewski, B. — a 

 Poulson, D. F. — b, d 

 Rockstein, M. — c 

 Rothenbuhler, W. C. — a, b 

 Ulrich, H. — a 

 Wolsky, A. — b 

 Ranzoli, F. — d 

 Baxter, E. W. — b 

 Hishida, T. — c 

 Takeuchi, K. — b 



208 



