- 



Plys*a ! ^ 

 Applied 



VOLUME XXXVIII. NUMBER 562. 



New Series. Volume XII. Part 5. 



Entered at Stationers' Hall. Articles 



MAY, 1915. 



Founded by Richard A. Proctor, 1881. 

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Containing 44 O Pages with 425 Illustrations, many being Full Page Plates. 



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