170 DE. C. CHKEE: AN ENQUIRY INTO THE NATURE OF THE RELATIONSHIP 



TABLE XIII. Katharinenburg (Units 1' in D, ly in H and V). 

 Monthly Means of Absolute Daily Ranges. 



In II the values of b in Table XIII. are on the average about double those in 

 Table XII., but owing to the large values of a in Table XIII. the excess in its values 

 for b/a is not striking, except in winter. 



In V the values of a and b are again much larger in Table XIII. than in 

 Table XII., but the seasonal and yearly values of b/a in the two are closely similar. 

 In Table XIII. the December and January values of b/a are conspicuously low in all 

 the elements as compared to the values for November and February. 



22. Table XIV. gives results for the range from the mean diurnal inequality for 

 the year (corresponding to the Pawlowsk data in Table VI.), for the mean of the 

 absolute daily ranges for the year (corresponding _to the first line of Table VII.), for 

 the mean of the 12 monthly ranges, and for the yearly range. The results for 

 the second of these quantities, though practically accordant with those in the last 

 line of Table XIII. , are not absolutely identical. The figures in Table XIII. represent 

 arithmetic means of a and b resulting from applications of formula (l) to individual 

 months of the year. Table XIV. assumes the 12 monthly mean ranges for each 

 year to be meaued, and these means dealt with by a single application of formula (1). 

 The last two quantities dealt with in Table XIV. do not in reality accord very closely 

 with the linear formula (1), but the figures at all events supply, as in the corre- 



