AND INDUSTRY 31 



in works, and must mould his solution of the 

 problem to harmonise with these possibilities. 

 The undertaking is often more complex than 

 that of the pure scientist. It is one which 

 needs a special laboratory, a special equip- 

 ment. 



As examples of such a laboratory, both of 

 which happen to be at works, I may instance 

 the Research Laboratory of the Badische- 

 Anilin-Soda-Fabrik, in which the commercial 

 production of synthetic indigo was worked out, 

 or the laboratory of the General Electric Co. 

 of America at Schenectady, where in numerous 

 instances the discoveries of modern electrical 

 theory have been turned to practical use. The 

 Coolidge tube, the most powerful source of 

 X-rays which we possess, is one product of this 

 laboratory. Other examples are some branches 

 of the Bureau of Standards at Washington, 

 the Materialprufungsamt at Gross-Lichter- 



