CLOUDS, FOG, AND AIRCRAFT ICING 
The Classification of Cloud Forms by Wallace E. Howell.............. 00. ee 1161 
The Use of Clouds in Forecasting by Charles F. Brooks........0. 0.0 0c 1167 
Fog by Joseph J. George...... ee ee een ae le 1179 
Physical and Operational Aspects of Aircraft Icing by Lewzs A. Rodert............................ 1190 
Meteorological Aspects of Aircraft Icing by William Lewis......... 2.0... cee eee eee WG)7/ 
