Contents 



XI 



XIV. METALLOGRAPHY AND OTHLR 

 INDUSTRIAL APPLICATIONS 



Direct Observation of Dislocations and Their 

 Movement in Metal Foils. 312 



P. B. HiRSCH, R. W. HoRNE AND M. .1. Whelan 

 Dislocations in Stainless Steel. 316 



W. BOLLMANN 



Migrations of Grain Boundaries Studied with the 

 Electronic Emission Microscope. 318 



R. Arnal and M. Sorel 



Perlit- und Bainitgefuge in drei KohlenstoflTstahlen 

 mit 0, 1 8 "o, 0,50 "„ und 0,86 % C. 319 



S. MODIN 



Selective Oxidation due to the Heating of the 

 Evaporated Film of a-Brass. 322 



N. TaKAHASHI AND K. MlHAMA 



The Electropolishing of Aluminium. 324 



A. W. Agar and R. S. M. Revell 



Zur Anwendung eines neuartigen elektrolytischen 

 Poliergerates. 326 



R. Zetzsche, E. Guyenot und H. J. Proger 



Llektronenoptische Untersuchungen an metallur- 

 gischen Stauben, insbesondere deren Praparation 

 und physikalische Differenzierung. 328 



A. M. D'Ans und L. von Bogdandy 



The Electron Microscope in the Study of Wear. 331 

 D. Scott and H. M. Scott 



Anwendungen der Mikrotomschnitt-Technik auf 

 elektronenmikroskopische Mineraluntersuchungen. 333 

 G. Prefferkorn, H. Themann und H. Urban 



The Use of a Freeze-drying Technique in the In- 

 vestigation of Sodium-Montmorillonite by Electron 

 Microscopy. 334 



H. C. Corbet and J. Wolffes 



Zur Kenntnis der Glasoberfliiche. 

 E. BkiJCHE und H. Poppa 



336 



Elektronenoptische Untersuchung natiirlichcr Opale 

 in Verbindung mit ditVcrcntiallhermischen und ront- 

 genographischen Studien Liber die Polytypic des 

 SiO.,. 339 



A. Maa.s 



A Reflection Electron Microscope Study of Dia- 

 mond Cleavage Surfaces. 341 

 M. Seal 



The Direct Observation in the Scanning Micro- 

 scope of Chemical Reactions. 343 

 J. H. L. McAusLAN AND K. C. A. Smith 



Uber das Teilchenwachstum sublimierbarer StofTe, 

 dargestelll am Beispicl des Zinksulfids. 346 



W. M Ciller und W. Jaenicke 



Electron-microscopical Investigations of Calcium 

 Hydroxide and Calcium Carbonate. 347 



G. SCHIMMEL 



Further Investigations of Photographic Develop- 

 ment by Means of the Electron Microscope. 349 

 E. Klein 



Gelatin in the Photographic Process. 351 



G. Vandermeerssche, C. Maertens and G. Lion 



The Microstructure of Photoconducti\e PbTe 

 Layers. 352 



A. Feltvnowski, J. Glass and L. Grelewicz 



Identification of Minerals Present in Mine Dusts by 

 Electron Diflfraction and Electron Microscopy. 353 



.1. H. Talbot 



