NUCLEATION AT PROVIDENCE AND BLOCK ISLAND. 



123 



January 13 is fairly well reproduced at Block Island and coincident 

 high values on January 16 are probably not due to chance. The 

 same may be said of January 23. 



Toward the end of February the pronounced maximum in the Block 

 Island results (February 23-26) is in keeping with the Providence 

 data. The sustained high wave of nucleation at Block Island from 



9 /O // /2 /3 14 15 IB 11 I'd 19 20 

 FIG. 98. Showing daily record for January 24 to February 21. 



February 26 to March 4 does not correspond to an equally sustained 

 case at Providence, though the nucleation is at times high. In this 

 region there are instances (not coternporaneous, however) in which 

 the Block Island nucleation exceeds that of Providence. 



Following January 25 the extremely high nucleations which hold 

 general sway up to February 6 are well reproduced by both curves. 

 There are here some striking coincidences, as on February i, 8, etc., 



21 



