\ LERe Yes, and it gradually settled dow. They are able to detect that vy optical effects, gradual decrease in height of the maln body of dust. GHIGOSs ‘Te this consistent with your picture? WEXLER: Yes, I think so because that went well up ebove the low of the stratosphere where it was effectively sealed off isotrepie exchange for lower atrosphere. This is also by some moisture measurements that have been rade. The up 100,600 feet and it shows that in the stratosphere phere is extremely well stratified vertically. That is, are layers moist or rather moist air and dry air. extremely low rate of mixing. This On the other hand, all thd nents that have been made indicate that the composition measurethe I is soneuheore inbetween probably days or weeks where moig wae It sort of gives you an idea of the tise acale of xixinga » ataosphere, that is the permanent gases ars extrenely un! Orme a precipitation, evaporation and things like that can tified and the tine required to do uniform mixing. In connection, are the samples obtained by rockets too small] to be analysed? I don't know. We don't know what the content is . WEXLER s They get samples cown to the order of a courle hundred co] I guess. : r| LIa2Ys are mv Anwtiiece 187