"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 points gives one a line of reasoning which should be useful to our active-service aviators in the future. When one makes due allowance for the propagandist nature of the book, which gives one the general impression of the writing of a gentleman prepared for publication by a hack journalist, one forms a distinctly favorable mental picture of the young Rittmeister Baron von Richthofen. Our old friend Froissart is credited with the statement that in his age of chivalry it was always "impossible to inculcate into the German knights the true spirit of knightliness." Which seems to indicate that the practical German mind of those days could not understand the whimsicalities of the Latin ideas of chivalry, which--for example--bade a knight against whose shield an opponent "brake his spear" haul off out of the fight till the lance-less enemy unsheathed his sword and "drave into the combat" again. Probably the Hun of those days proceeded to stick his opponent in the midriff--wherever it may be--and so finished the fight. In the same true spirit of knightliness an Englishman knocks a man down and then stands back so that he can get up and have another chance, whereas a more practical person would take excellent care that his opponent never got up till he had acknowledged himself beaten. It is all a matter of the point of view, and largely no doubt a matter of education. However, making due allowance for the point of view, one finds surprisingly little Hunnishness in von Richthofen's manners or methods as set forth in print. It is one of the accepted facts of the war that the German aviators have displayed greater chivalry than any other branch of the German services. It was a common occurrence for their pilots to fly over our lines in the course of their business, and, by way of variety from that business, to drop packets containing letters from captured British aviators, or the personal belongings of the dead. One gathers that these acts of courtesy have become less frequent of late, owing to the intensification of aerial warfare, but it seems that captured and killed aviators still receive the full courtesies of war from the German aviators, whatever may be the fate of prisoners in other hands afterwards.