Laboratory Studies -33- 



From the outset he studied and analyzed the various test flights of 

 the Operations Group, and extensive reports were prepared analyzing cum- 

 ulus and stratus cloud seedings. His analysis of the cumulus seedings over 

 Hawaii and the chain-reaction theory of rainfall which resulted have al- 

 ready been mentioned. (Page 30) 



Langmuir paid particular attention to the seeding operations carried 

 on in New Mexico, and to the possible effects of silver-iodide seeding, and 

 these activities are described more fully in a later section of this report. 

 (Page 47) 



Such a large quantity of data was accumulated by flight, field and 

 laboratory activities during the more active period of the project, that the 

 Research Group finally suggested early in 1950 to the Technical Steering 

 Committee that flight operations be terminated at Schenectady in order 

 that the accumulated data might be evaluated and reports prepared on 

 the findings. 



