CONTENTS 



Foreword 



1. Radiation Dose. Macroscopic, Microscopic and Sub-Micro- 



scopic Aspects. L. H. Gray ... ... ... ... ... 1 



Discussion ... ... ... ... ... ... ••• ••■ 13 



2. Leukaemia Induced by Radiation. J. F. Loutit ... ... 15 



Discussion ... ... ... ... ... ... ••• ••• 23 



3. Effect of Whole-Body Irradiation on Thymus Function and 



Lymphocyte Homeostasis. Donald Metcalf ... ... 26 



Discussion ... ... ... ... ... ... ... •■• 29 



4. Radiation Quality and Bone-Marrow Dose in Radiology. 



J. H. Martin and G. Muller 30 



5. Some effects on Lymphoid Cells of Occupational and Accidental 



Exposure to Ionizing Radiations. D. O. Shiels ... ... 37 



6. Leukaemia Treated by Radiation. J. F. Loutit ... ... 47 



Discussion ... ... ... ... ... ... ... ... 54 



7. Selective Irradiation and Attempted Replacement of Bone 



Marrow in the Rabbit, Using ^^^Au. J. M. Garvan, E. P. 

 George, F. A. Rocke and S. Vince 



Discussion 



8. Experiments in Homograft Survival. M. Kent ... 

 Discussion 



9. Secondary Radiation Disease Following Heterografting 

 Ilbery 



Peter 



56 

 66 



68 



71 



73 



10. An Experimental Study of the Influence of Oxygen on the Radio- 



Sensitivity of the Ehrlich Ascites Tumour Cell. L. H. Gray 76 



Discussion ... ... ... ... ... ... ... ■•• 84 



1 1 . The Action of Ionizing Radiation on Simple Organic Compounds. 



K. H. Napier and J. H. Green 87 



Discussion ... ... ... ... ... ... ••• ••• 93 



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