24 THE POPULAR SCIENCE MONTHLY. 



manufacture of cast steel in encyclopaedias and other works are 

 for the most part out of date or are written by scientific men hav- 

 ing little or no practical acquaintance with the subject, and con- 

 sequently are not of much value. . . . The steel manufacturers of 

 Sheffield are not chemists. The application of chemistry to the 

 manufacture of cast steel has not yet met with any success. The 



Fig. 63. — Blowing-Engine of the Wyandotte Works. 



analysis of steel is a very difficult process. It has frequently 

 been attempted in Sheffield, but never with any practical success." 

 It is possible that the triumphs of chemistry during the past 

 twenty years, as illustrated by the Thomas- Gilchrist and many 

 other important improvements in metallurgical practice, may 

 have convinced the worshipers of the ultra-practical — American 



