"The Red Battle-Flyer" has evidently been carefully censored by the German authorities. Also it has possibly been touched up here and there for propagandist purposes. Consequently, although the narrative as it stands is extraordinarily interesting, the book as a whole is still more interesting on account of what one reads between the lines, and of what one can deduce from the general outlook of the writer. There is, perhaps, little to learn of immediate topical interest, but there is much that explains things which were rather difficult to understand in the past, and the understanding of such...