SESSION II 



Chairman: H. curtis 



LEUKAEMOGENESIS : 

 ROLE OF VIRUSES AND CYTOLOGICAL ASPECTS 



By ARTHUR C. UPTON 



Chromosomes in Murine Pre-Leukaemia 



By P. L. T. ILBERY, P. A. MOORE, S. M. WINN, AND C. E. FORD 



The Chromosomes in Virus-induced Murine Leukaemias 



By P. C. KOLLER, E. LEUCHARS, C. TALUKDAR, AND V. WALLIS 



Chromosome Abnormahties and the Leukaemia Process 



By J. LEJEUNE 



Quantitative Aspects of Experimental Leukaemogenesis by Radiation 



By R. H. MOLE 



Effects of Ionizing Radiation on Cellular Components: Electron Microscopic 



Observations 



By H. COTTIER, B. ROOS, AND S. BARANDUN 



