CLOUD SEEDING — HOUGHTON 187 



research is allowed to proceed. It is indeed unfortunate that public- 

 ity and argument have clouded the immediate issue, but this must 

 not be allowed to obscure the long-range scientific view. 



REFERENCES 



1. Meteorological Abstracts and Bibliography. 



1950. Vol. 1, pp. 175-205. (The most important papers listed therein appear 

 to be: C-121, C-122, C-129, C-131, C-140, C-147, C-148, C-149, 

 C-150, C-101, C-165, C-171, C-172, C-173, C-176, C-183, C-189, 

 C-190. C-196, and C-204. ) 



2. Schaefeb, V. J. 



1946. The production of ice crystals in a cloud of supercooled water drop- 



lets. Science, vol. 104, pp. 457—459, Nov. 15. 



3. VONNEGUT, B. 



1947. The nucleation of ice formation by silver iodide. Journ. Appl. Phys., 



vol. 18, pp. 593-595, July. 



4. Langmuib, I. 



1948. The production of rain by a chain reaction in cumulus clouds at tem- 



peratures above freezing. Journ. Meteorol., vol. 5, pp. 175-192, 

 October. 



5. VONNEOUT, B. 



1950. Experiments with silver iodide smokes in the natural atmosphere. 

 Bull. Amer. Meteorol. Soc, vol. 31, pp.151-157, May. 



6. Squiees, p., and Smith, E. J. 



1949. The artificial stimulation of precipitation by means of dry ice. Aus- 



tralian Journ. Sci. Res., A. Phys. Sci., vol. 2, pp. 232-245. 



7. Langmtjib, I. 



1946. Memorandum on introduction of ice nuclei into clouds. General 

 Electric Res. Lab., Schenectady, N. Y., Aug. 16. 



8. FiNDEiSEN, W., and Schultz, G. 



1944. Experimentelle Untersuehungen iiber die atmospharische Eisteilchen- 

 bildung I. Forsch. u. Erfarhrb. Reichs. Wetterd., Ser. A, No. 27, 

 Berlin. 



