human
D lighthouse; the river Saar was crossed north of Saarburg; Bitsch and Pirmasens were passed to the north and Kaiserlautern to the south and then, the Vosges Mountains having been crossed, Jock and his companion looked down on the Rhine valley. The Rhine River was crossed north of Oppenheim, and from an elevation of six thousand feet, Mainz, at the juncture of the rivers Main and Rhine, showed clearly in the moonlight. Still holding their course, the aviators looked out to the left, followed up the river Main to Frankfort, here they throttled back the engines, glided swiftly down through the anti-aircraft barrage and searchlights and released their bombs as accurately as possible. Then, after an almost vertical