( 162 ) 



number of the period the means of the last mentioned numbers 

 taken in pairs (viz. the means of the maximum at the beginning 

 and at the end). For the curve c^ the preceding maximum value 

 was written down in the same place. 



In table Ylld have been inserted cold factors as combined in each 

 column for the three last 89-year periods. 



Table Vile* shows the sum of the cold factors between the com- 

 puted maxima of the 11-year cycles, obtained by addition of all the 

 89-year periods elapsed since 848. They are nothing else than the 

 totals of Table I in my first communication about this subject (in 

 e^ I gave a greater weight to the most recent data, see p. 163). 



Figure I is a graphical representation of the curves of Table VII. 



IS 



si 



