CONSTABLE'S 



"Westminster Series 



Bound in uniform style. Fully Illustrated. Price 6/- net each. 



The Volumes in the " Westminster" Series have 

 been designed to meet the growing demand for books 

 on practical subjects ; to bring within the ken of 

 the non-technical reader an accurate knowledge of 

 manufacturing processes and the practical appli- 

 cation of modern science to industries. Each 

 volume is written by an expert to the end that 

 practical readers and all who are engaged in the 

 numerous allied branches of the engineering 

 and technical trades may have reliable works 

 of reference. The series provides for a class not 

 hitherto reached in published works. The 

 volumes can be easily read by the general 

 public, and make excellent handbooks at a 

 moderate price for the student. 



The series is well suited to public libraries and 

 will be found valuable for libraries in engineering 

 shops and factories. 



ARCHIBALD CONSTABLE & CO. LTD. 

 10 Orange Street, Leicester Square, London, W.C. 



