CORRELATION WITH SUNSPOTS. 
77 
which neither allowed himself to regard as conclusive. In the immense 
work of Hellmann (1906) upon the rainfall of the North German 
drainage area, it is this inconspicuous maximum which he finds the 
more important of the two. 
1.00-- 
\ we 
een wt 
100 
2 
1850 1900 
- 
5 
r Sun Sp 
2 yrs. to 
FI. Norway, Inner Fjords 
va. NW. eT Da ne 
Ly Sd ey oe Wb er oe 
ots, displaced 
Fai 
IK. S. Bavaria 4 Bea 4 - 
= sh. 
ee hl 
0 
4 di 
4 1.00 
470.75 
1.00 
0.75 
0.75 
1850 7 . ; 190 
Fig. 24.—Three European groups, standardized and smoothed. 
1650 1S00 
Trees/ 
—-—-- 114 Yrs. - --= 
1866.9 1676.5 
Mm, 
731.20 
71.00 
=| 0,80 
Fic. 25.—Comparison between 57 north Europe trees (smoothed) and sunspot numbers. The 
trees are from England, Norway, Sweden, and north Germany. 
