SNOW-CRYSTAL ANALYSIS 
terial will still give more information on the 
physics of cloud. 
Acknowledgments—This_ research has 
sponsored in part by the Office, Chief of Research 
and Development, U. 8. Department of Army, 
through the European Office, under Contract No. 
DA-91-508S-EUC-286. An expanded version of 
this report is given in the Final Report to this 
contract, February 15, 1959. 
been 
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AS INDIRECT AEROLOGY 141 
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