Nothing of this kind could have been done by the man who was only a good writer, only a trained scientific observer, or only an enterprising and adventurous traveler. Mr. Beebe is not merely one of these, but all three; and he is very much more in addition. He possesses a wide field of interest; he is in the truest sense of the word a man of broad and deep cultivation. He cares greatly for noble architecture and noble poetry; for beautiful pictures and statues and finely written books. Nor are his interests only concerned with nature apart from man and from the works of man. He possesses an extraordinary sympathy with and understanding of mankind itself, in all its myriad types and varieties. In this book, and in his other recent writing (for I wish to draw a sharp line in favor of what he has recently written as compared with his earlier and more commonplace work), some of his most interesting descriptions are of the wild folk he meets in the wilderness--black or yellow, brown or red--and of some nominally tamer folk with whom he has foregathered in civilization. I don't know in which category, civilization or savagery, the trenches at the front ought to come; but Mr. Beebe, a man of deeds as well as of books, knows the trenches and the people in them, and the pathetic or pitiful or else wholly brave and admirable people back of them; and his sketches of some of them and of their deeds and of the by-products of war as waged today are wholly admirable. Lowell, praising the Elizabethans as both doers and writers, spoke of Ben Jonson's having trailed a pike in the lowlands, and of Kenelm Digby's having illustrated a point in physics by the effects of the concussion of the guns in the sea fight in which he took part off Scanderoon. Beebe, as bomber, has sailed in planes over the German lines; in company with a French officer he has listened to a wolf howl just back of the fighting front; he has gone with Iroquois Indians into the No Man's Land between the trenches of the mightiest armies the world has ever seen. This volume was written when the writer's soul was sick of the carnage which has turned the soil of Northern France into a red desert of horror. To him the jungle seemed peaceful, and the underlying war among its furtive dwellers but a small thing compared to the awful contest raging among the most highly civilized of the nations of mankind. It is the same feeling that makes strong men, who have sickened of the mean and squalid injustice of so much of life in the centres of material progress, turn with longing to the waste places where no paths penetrate the frowning or smiling forests and no keels furrow the lonely rivers.