shining, so that large lump is formed on his forehead; says: “Excuse me please.” No expression of pain. [page 15 of original] 30 min. Knows his name and place of birth. Upon being asked for the day’s date: “1 November 1928”. Shivering of the legs; stupor continues; cannot be frightened by the report of a shot. Dark objects are still not discerned; subject bumps against them. Is aware of bright light; knows his profession; spacially disoriented. 37 min. Reacts to pain stimuli. 40 min. Begins to observe differences. Falls continually into his previous speech stereotypes. 50 min. Spacially oriented. 75 min. Still disoriented in time; retrogressive amnesia over 3 days. 24 hours Normal condition again attained; has no recollection of the experiment itself. The events of the descending experiments from 15 km., as shown here through this example, repeated themselves in a similar way in all the rest of the experiments. The average data from 20 experiments with 15 different subjects are as follows: Table 3 │ │ │ Clear 15 km. │ Unconsciousness │Subconscious awakening │consciousness [47,200 ft.]│ after— │ movements │ at 0 km. │ │ │ Suspended │16″ = 14.7 km. │20½′ = 1.8 km. │ │ [48,220 ft.]. │ [5,910 ft.]. │ 18′-90′ │ │ │ Lying │20″ = 14.6 km. │14′ = 5 km. │ 15′-80′ │ [47,890 ft.]. │ [16,400 ft.] │ Unconsciousness after discontinuation of oxygen occurs following a short motor restlessness with severe altitude sickness, whereupon light spasmodic and then very severe tonic convulsions follow in a condition of complete unconsciousness. These tonic convulsions lasting virtually a minute are followed rather suddenly by a phase of complete [page 16 of original]