Preface 



statements so that they may at least prove 

 of assistance to any one who may hereafter 

 work up the subject as it deserves. I had 

 hoped to delay the publication of my book 

 until after the declaration of peace, when I 

 might have had leisure to sift and to elaborate 

 my notes, but this hope has been frustrated 

 by the knowledge that more important work 

 will then confront me ; I have therefore felt 

 compelled to publish them as they now stand. 

 I must thank my friend Captain Harold 

 Stannard for his assistance in preparing my 

 notes for publication and also for reading 

 the proofs of the book. As regards the pic- 

 tures and photographs which I have been 

 enabled to reproduce as illustrations, I am 

 indebted to the courtesy of the Imperial 

 War Museum (Photographic Section) for 

 Plates i, 2, 7, 8, 12, 13, 15, 16, and 17 ; to the 

 Canadian War Records Office for Plates 3 

 and 4; to the Associated Illustration Agencies, 

 Ltd., for Plate 5 ; to Mr. F. W. Frohawk 

 and the Editor of The Field for Plate 6 ; to 

 the Alfieri Picture Service for Plate 9 ; to 

 the London Electrotype Agency, Ltd., for 



xli 



