SECTIONS AT HIGH MAGNIFICATION 161 



very indistinctly seen ; at the same time we are quite alive to the 

 fact that they have not led us to any absolutely new discovery in the 

 microstructure of Steel, and it is quite evident that there is 

 an important field open for further investigations in this direction. 



During the last few months we have been prosecuting enquiries 

 in different directions with a view to obtaining apparatus which would 

 enable us to attain much higher resolution than has been practicable 

 with that at our disposal. While so far we have not been able to 

 do this, several makers of apparatus and objectives in this Country 

 are working at the problem, which we feel sure will soon be solved. 



We have also been specially interested in the possibilities that 

 might lie in the use of Ultra-violet Light for Photomicrography applied 

 to Metal Sections. Who knows what new order of Phenomena may not 

 be brought within our vision by the use of such apparatus. Researches 

 are being made in this new field, and we all hope that such labours 

 will be crowned with success. 



In conclusion it is hoped that by presenting these Photomicrographs 

 interest will be aroused in this special subject and that others will 

 press forward investigations from which our general knowledge of the 

 subject will benefit ; also that the makers of the necessary Apparatus, 

 whether Microscopes, Lenses or Lighting Appliances, will come forward 

 with new developments which will enable still further fields to be 

 explored in the now Unknown. 



