12 



SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 128 



Sunspots are like machine guns, bombarding the earth with multi- 

 tudes of ions. These ions act as centers of condensation for dust and 

 water vapor, thus altering the state of the atmosphere, the lags, and 

 the phases of periods in weather. As a compromise measure, I use a 

 dividing line at 20 Wolf numbers in my tabulations. 



Table 3. — Weather normals, taking account of sunspot frequency 

 {precipitation given in inches') 



Sunspot 

 frequency 



High^ 

 Low J " 



High^ 

 Low J ■ 



Station and 

 element 



Jan. 



r 1.84 



. Peona precipitation ^ ^ o 



r 2.56 

 . Albany precipitation -^ 



|- ... St. Louis precipitation ■{ 



High-i , . , , , /33°8 



Low I ■ • • Washington temperature • -i 33 7 



Highl 

 Low 



High 

 Low 



}... 



St. Louis temperature 



•■••{ 



30?9 

 32.7 



Station and 

 element 



Sunspot 

 frequency 



Highl ^ . ... 



Low f ■ ■ ■ P^°'''^ precipitation 



High^ 

 Low J ' 



{I 



July 

 70 

 40 



4.02 

 3-43 



High 

 Low 



High 

 Low 



High 

 Low 



, . Albany precipitation ■{ 



■\ ..fa- 



> ... St. Louis precipitation -^ 



^ r76? 



>. . .Washington temperature. A _^ 



> ... St. Louis temperature 1 go 4 



76?5 

 2 



Feb. 

 1.87 

 1. 71 



2.52 

 2.09 



2.49 

 2.46 



35-6 

 34-6 



35-1 

 38.8 



3-64 

 3.89 



3-15 

 3-52 



74°9 

 74.1 



77°S 

 77-4 



Mar. 

 2.80 

 2.82 



2.64 

 2.96 



3-29 

 3-90 



43? I 

 42.7 



44-6 

 43-3 



Aug. Sept. 



3-o6 3.56 

 2.66 3.85 



3.18 

 3.38 



3-31 

 3.32 



68?3 

 68.1 



70?5 

 69.8 



Apr. 



3-62 



2.79 



2.45 

 2.91 



3-72 

 3-79 



53°3 

 53-9 



55?6 

 56.0 



Oct. 

 2.22 

 2.56 



2.69 

 3.19 



2.77 

 2.71 



56?4 

 56.9 



57°7 

 58.3 



May 



3-90 



3-88 



3.03 

 3.13 



4.32 

 4-36 



63°9 

 64.0 



66?o 

 66.2 



Nov. 

 2.36 

 2.22 



2.76 



2.87 

 2.68 



45-5 

 46.0 



44° 5 



45-5 



June 

 4.04 

 24 



Dec. 

 1. 91 

 1.88 



2.09 

 2.32 



2.36 



2.54 



35°3 

 36.4 



34?8 

 35-7 



Fourth, phases depend on human occupancy, and other secularly 

 changing conditions. As a compromise measure, in these tabulations 

 I use 1900, approximately, as a dividing line. 



These compromise measures lead me to make 12 tables each for all 

 the periods, 13 in number, which lie below 20 months. As the num- 



^ These values are those published in the paper cited in note 4 above. But 

 they are so different from those of other stations, that I feared they were partly 

 erroneous. A revision, however, confirms these. 



Year 

 Total 



