20 



SMITHSONIAN MISCELLANEOUS COLLECTIONS 



VOL. J-J 



the column headed " o day " are given the cases in which the fore- 

 casted rain fell exactly on the day indicated, and in those headed 

 " I day," " 2 days," etc., cases w^hen rain fell one day or more before 

 or after the forecasted day. 



Table 14. — J'crificatioii of forecasted rain for the River Plata Region 

 Period June 29, 1922-January 3, 1923 



It must be remarked that only one case out of 26 was predicted with 

 only one day's anticipation, of the cases within the limit 0-2 days, and 

 the rest prognosticated with 2 to 7 days anticipation in the above 

 period. 



In the following period, January to July, 1923, of 34 cases of 

 probable rain within the same limit, only four were forecasted for 

 the first day of the week, and 30 cases with from 2 to 7 days an- 

 ticipation. 



Table 15. — J'crification of forecasted rain for tlie River Plata Region 

 Period January 4-July 4, 1923 



