THE MICROBIOLOGY OF THE ATMOSPHERE 



l-O 



0-8 



E 



en/ 

 O ^ 



02 



o"-^ 



(a) Graph of log a against log x. 



0-4 Ob 0-8 

 log T sees 



{b) Graph of log a against log t. 



Fig. 7. — Test of agreement of W. Schmidt's and Sutton's diffusion theories with 

 experiments using Lycopodiiim spores liberated over grass field at Imperial College Field 

 Station, Ascot, Berks. (Gregory, Longhurst & Sreeramulu, unpublished) 



56 



