SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. Ill 



12 



-J O +J 



Fig. I. — Frequency of minima, —3 to +3 days from dates predicted in 1948. 



Table 3. — Corrected dates in 1949 and 1950 when inhiima zvere due in 

 Washington temperatures 



Jan. . 



Feb. 



Mar. 



Apr. 



May 



June 



July 



Aug. 

 Sept. 

 Oct. . 

 Nov. 

 Dec. 



30 



31 



30 



