air for at least LE hours. I beliewe chis condition vas due to the cosaic ras disturbances in tne air caused by the blast. this theory ami comiition. The Aray is here aeasuring Immediately after sero, the nvise level sent don to almost cero and did not come back up co noraal again until abouc H - 50 hours. Maybe this theory is risnt; aasbe not? That about covers everything. wm sorry that I didn't know “wre about what to expect. I We would hive been pre- pared at least with some piwto coverage and by some crude oeans of measurenents. NEXT THE! °