196 DK. W. H. HATFIELD 



will not go into it except to say that there are two fundamentally 

 different conditions of the same steel, which at present we are not 

 able to obtain the reason for by means of the microscope, and I 

 think we have a right to feel that we should. I do not hesitate to 

 make a confession to you. An artilleryman does not worry unduly 

 as to how the gun was made or who made it. I represent exactly 

 that type of scientific investigator who uses a microscope, and, like 

 the artilleryman, I am telling you what we would like to do with 

 the gun. Therefore, I think it is up to the makers of the microscope 

 to help Sir Robert Hadfield and many people like myself who are 

 engaged in these investigations, out of our difficulties. In conclusion, 

 I would tell you that all metallui'gists, whether they be working 

 on steel or non-ferrous metals — brass, copper, gold — are faced with 

 the difficulty of obtaining an adequate solution as to the cause of 

 the effect of cold work on metals. We discuss the amorphous theory ; 

 many of us believe in it; we ought to be able, by means of the 

 microscope, if you will give us a suitable tool, to obtain an adequate 

 solution of that problem. Why has cold work the great effect it has 

 in hardening metals? Gentlemen, I consider the solution of that 

 problem is awaiting the excellence of your products. 



