SERIES ON PLATES 70 AND 



335 



It is apparent that the figures in the fifth column of 71 are exactly 

 double those in the sixth column. This and the fact that the day 

 IV Eb is the same as those following are the only indications that 

 there is any connection between the series. Using the 5 years and 1 

 month as the common difference and adding, the result is as follows: 



Years. Months. Days. 

 5 10 Sixth column, lower division, Plate 71. 



.5 1 



Fifth column, lower divi; 



IT) 3 Fourth column, lower division, Plate 71. 



At this point another change occurs: tlie former difference is added 

 to the last figures and the sum is doubled. 



Twenty year periods. Years. Months. Days. 

 1,') 3 



5 10 



Third column lower division, Plate 71. 

 



Second column, lower division, Plate 71, 

 



First column, lower division, Plate 71. 

 



Sixth column, lower division, Plate 70. 







Fifth column, lower division, Plate 70. 



This series does not end at this point, but is continued in the lines 

 immediately above, which are as follows: 



Table XXY.— Table showing relations hetween Plates 70 and 71. 



