The various appendices and the index which make up the present volume are the work of Mr. G. P. Tallboy, who has acted as secretary to the History for the last seven years, and whom I have to thank not only for the labour and research comprised in this volume, but for much useful assistance in the past. The index will, I hope, prove of real service to students of the war. The general principles on which it has been compiled are those with which the index to The Times has familiarized the public. The very full bibliography which Mr. Tallboy has collected may give the reader some inkling of the amount of work involved in the composition of this history. I cannot claim to have actually read all the works comprised in the list, though I think there are comparatively few among them that have not been consulted. On the other hand the list does not include the blue — books, despatches, magazine and newspaper articles, and, above all, private diaries, narratives and notes, which.