Biophysics 



50. Controlled partial illumination or irradiation of large numbers of cells. 



(General) 

 L. Jaffe, H. Etzold & S. McKinley — J. Biophys. Biochem. Cytol. (in press) 



51. A method for subjecting dividing eggs to constant tensile stress. 



R. Rappaport — J. Exp. Zool. 144, 225-231, 1960 (Echinodermata) 



See also entry no. 25 



Mathematics 



See entry no. 26 



Development and Genetics 



Operation and marking 



52. Measurement of developmental rate by transplantation. (Insecta) 

 F. W. Muth — Roux' Arch, (in press) 



Biophysics 



See entry no. 25 



Mathematics 



See entry no. 26 



Development and Pathology 



Microscopy, photography and reconstruction 



See entry no. 28 



Operation and marking 



53. A method for obtaining experimental cranioschisis, exencephalia or ce- 

 phalocoele, as well as "overgrowth" of the neural tube. (Aves) 



R. Jelinek — Cs. Morfol. 7, 368-378, 1960 

 See also entry no. 29 



Culturing (of organisms, organs, tissues and cells) 



54. Effet du tabac sur les fibroblastes pulmonaires par diffusion et par con- 

 tact a travers de l'huile de paraffine. (Aves) 



B. Courtey & J.-P. Denefle — C.R. Ass. Anat. 106, 201-209, 1960 



255 



