AND INDUSTRY 29 



in a purely industrial laboratory. It means 

 a large elaborately equipped and heavily 

 staffed laboratory engaged largely in work 

 which for many years will be unremunerative, 

 and which for a considerable time after its 

 foundation will obtain no results which can 

 be applied by the manufacturer/' While Dr 

 Rosenhain in the lecture already referred to 

 takes as an instance the case of a series of 

 alloys which is being studied by an investi- 

 gator interested mainly in theoretical metal- 

 lurgy ; he works with pure metals or metals as 

 nearly pure as he can get them, and finds that 

 one alloy of his series has some specially note- 

 worthy properties. He may call the attention 

 of a manufacturer to these and suggest that 

 the alloy might have valuable industrial appli- 

 cation. Much, however, remains to be done 

 before this can be realized ; the pure materials 

 of the investigator are not available in 



