6? H 367 



DEDICATED 



TO THE 



HON. CAPTAIN B. E. CLIFFORD 



22nd Royal Fusiliers 



The Author respectfully dedicates this trea- 

 tise, knowing that the Captain's knowledge 

 of History and Science will enable him to 

 appreciate the difficulty of its production 

 even in the present simple form. 



r* *y h*S *- 



IVlo / ^, 



