Contents 



Geological, Mineralogical and Ceramic Applications of Microradiography, 



W. Johnson 574 



Grainless Media for Image Registration, G. L. Clark 581 



Histology by the Projection Microscope, R. L. deC. H. Saunders 582 



Inter-Relation of Techniques for the Investigation of Materials, K. W. 



Andrews 586 



Iron and Steel Applications of Microradiography, K. W. Andrews and W. 



Johnson 587 



Medico-Biologic Research by Microradiography, F. Bohatirchuk 591 



Microangiography with the Projection Microscope, R. L. deC. H. Saunders. . 627 

 MicROFLUOROScoPY. See Contact Microradiography, p. 561 



Plant Microradiography, ./. Salmon 636 



Point Projection X-Ray Microscopy, W. C. Nixon 647 



Production of Continuous and Characteristic X-Radiation for Contact and 



Projection Microradiography, N. A. Dyson 653 



Projection Microscopy, Ong Sing Poen 661 



Reflection Microscopy (Kirkpatrick), G. L. Clark 672 



Two-Wave (Buerger) Microscope, G. L. Clark 674 



Ultrasoft X-Ray Microscopy, Burton L. Henke 675 



Vascular and Dental Applications of Projection Microscopy. See Micro- 

 angiography, p. 627 



Xlll 



