22 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 128 



^/i2, /is, V20, %7, ^8, %o and %3 of 22^ years, together with the other 

 lines of evidence presented above in Part 2, and the close accord 

 between syntheses and events, shown by using 22 such periods to 

 predict precipitation many years from base, as in figures i to 5 of 

 Part I, must be sufficient to justify my claim to the discovery of a 

 numerous family of periodicities in weather elements. All, to within 

 I percent, are exact submultiples of 22| years. Very long range 

 general weather predictions have been and can be made, using them. 

 I feel that if meteorologists could accept these proofs, governments 

 would feel justified in supporting similar studies of temperature and 

 precipitation at numerous stations within their borders. From such 

 studies maps of expected weather conditions for many years in ad- 

 vance could be drawn. Such maps, if found to give general conditions 

 with reasonable approximation, would evidently be of great value for 

 many industries. The only fly in the ointment seems to be that tre- 

 mendous disturbances of the atmosphere, such as sometimes are caused 

 by volcanoes, and also by profuse use of powerful bombs, in war and 

 in tests, may spoil forecasts of this ambitious type. 



