l6 SMITHSONKAN MISCELLANEOUS COLLECTIONS VOL. I48 



vation for St. Louis monthly precipitation, 24 months, 1878 and 1879. It is 

 based on all records 1854 to 1939, centering at 1897. It is + 87.5 ± 6.5 percent 

 E. Average deviations of forecasts from events are no greater at wide depar- 

 tures from normal, or after long lapse of time. 



(1) Smith. Misc. Coll., vol. 143, No. 5, pp. 1, 6, table 1. Pub. 4471. Published 

 1961. 



(2) Smith. Misc. Coll., vol. 128, No. 3, Pub. 4211. Published 1955. 



