THE BATTLE OF FRANCE the firing. If the data are correct the resolved equation brings an aeroplane to earth. One's thoughts dwelt inevitably on the contrast between the prodigious ingenuity of this machine and the primitive dens that house those who serve it. Man's geometry can raise him up among the gods, if his grossness does not cast him down to HelL cOne of our difficulties/ the Lieutenant said, 'is to distinguish between our own machines and the enemy's. And the Germans themselves, on their own admission, are continually making the same mistakes/ Love of gunnery is a contagious passion. That evening in the cantonment, the French liaison officer and the padre, having acquired a matting target and arrows, were practising indirect fire. They had set up a screen between the marksman and the target. An observer signalled where the arrows fell and the marksman adjusted his aim accordingly. It is a game for the intelligent. The Guards You may have seen them in London, in their red tunics and great bearskins, mounting guard before Buckingham Palace: you may have admired the rigidity of their movements, the vigour with which they handle their arms, the elegance of their officers 50