SESSION I 



Chairman: e. e. pochin 



LEUKAEMOGENESIS : 

 QUANTITATIVE ASPECTS AND CO-FACTORS 



By R. H. MOLE 



Effects of Low X-Ray Doses on Haematopoiesis shown by 

 Cytological and Haematological Study and 59Fe-Incorporation — 



A Four-months' Survey 



By H. MAISIN 



Leukaemogenic Effect of Whole-body 60Co-y-Irradiation Compared with 



3H-Thymidine and ^H-Cytidine; Prehminary Report on the Development 



of Thymic Lymphomas in C57BL/6J Mice 



By H. COTTIER, E. P. CRONKITE, E. A. TONNA, AND N. O. NIELSEN 



The Effect of Single and Fractionated Doses of Radiation on the 

 Haematopoietic Systems of C57BL Mice 



By P. C. KOLLER AND VALERIE WALLIS 



New Evidence on the Mechanism of Radiation Leukaemogenesis 



By I. BERENBLUM AND N. TRAININ 



A Comparative Study of the Late Effects of Certain Radiomimetic Drugs 



and X-Rays 



By L. NEMETH 



Serial Transplantation of Haematopoietic Tissue in Irradiated Hosts 



By P. C. KOLLER AND S. M. A. DOAK 



