246 



Organisms 



Pteridophytes: 



Spermatophytes: 

 Tuberous roots of 

 lianuncnlaceae 



Sprouting seeds of 

 wheat, rye. lucern 

 and Hcliauthus 



Temp. 



Time of Exposure to 

 Cold & Other Conditions Investigators 



L. air 



L. nitr, 



L. nitr 



2 hrs. 



IS days; previously air 

 and vacuum-dried 



Luyet & Har- 

 tuug, 1939 

 (unpub- 

 lished) 



Becquerel, 

 1932b 



IS days; previously air- Becquerel, 

 and vacuum-dried , 1932c 



(('. Mf'tazoa 



