RT Journal
T1 LOndon
JF Journal of the American Medical Association
JO Journal of the American Medical Association
YR 1929
FD September 7
VO 93
IS 10
SP 779
OP 780
DO 10.1001/jama.1929.02710100041022
UL http://dx.doi.org/10.1001/jama.1929.02710100041022
AB Disease Germs in the Upper Air 
    Remarkable experiments proving that disease germs are carried and epidemics spread by the thin air currents of the upper atmosphere have just been completed at Cambridge. The work has been directed by Mr. W. A. R. Dillon Weston, M.A., of the University School of Agriculture. In association with Mr. Everett of the Hampshire Light Aero Club, and Flight Lieutenant Goddard of the Cambridge University Air Squadron, he has been chasing bacteria by airplane and catching them by the million in traps. Three kinds of germ traps were used-glass slides smeared with petrolatum, test tubes containing culture mediums, and glass dishes also filled with a culture medium. They were taken up sealed in the airplane, unsealed and exposed when the desired height was reached, and then sealed again. The principal object is to trace how diseases of plants and crops can be spread through the