THE UPPER ATMOSPHERE 
General Aspects of Upper Atmospheric Physics by S. K. Mitra... 000... eee 245 
Photochemical Processes in the Upper Atmosphere and Resultant Composition by Sydney Chapman.... 262 
OZonenuitherAtmosphererby Ey WalPanl Gotze. ya. ee 9 soe ane eee sae ne oes se esas seca ea wee eee 275 
Radiative Be ees riee Changes in the Ozone Layer by Richard A. Craig..................00.0. 02 00-- 292 
Temperatures and Pressures in the Upper Atmosphere by Homer E. Newell, Jr.......................- 303 
Water Vapour in the Upper Air by G. M. B. Dobson and A. W. Brewer................ 0000. e eevee eens 311 
Diffusion in the Upper Atmosphere by Heinz Lettaw.. 0.0.01. cee eee 320 
pbCRTOnosphencyy ysis Selon ees mya cites ote Rtiaye nee eed bd valde ss Sale eas aM Se oe 2 koe ones 334 
Night-Sky Radiations from the Upper Atmosphere by E. O. Hulburt.... 2.0.0... 60 cece eee 341 
Aiiormne anal Minnie Sromms (yy ky EURTHS: as o00 55 00000578 555500 bad ssh do usbenanneueanonnndauseae 347 
Meteors as Probes of the Upper Atmosphere by Fred L. Whipple...... 0.00.0... 0 ce eee ee ee 356 
Sound Propagation in the Atmosphere by B. Gutenberg. ..... 00... et tence eens 366 
