A STUDY OF CORKELATIONS AMONG TERRESTRIAL TEMPERATURES. 



337 



The following example of the computation of the fluctuation from the annual 

 departures at Kingston, Jamaica, will make the process clear: 



Coefficient of Swaspot Fluctuation at Kingston, Jamaica. 



In addition to the observations collected by myself for this work, I have made 

 use of those of Kuppen cited in the j^aper already referred to. This course was 

 adopted because it did not seem necessary to repeat Koppen's work, even were the 

 means of doing so available, which was not the case for the earlier observations. So 

 far as I could infer from an examination of his work, and its comparison with pub- 

 lished records, it is practically complete for all our present purposes. It is possible 

 that there is a slight duplication of some of the observations in the work of Koppen 

 and of myself arising from the fact that his series and mine in a few cases overlap. 

 But these cases are too few to be important, and only amount to assigning double their 

 proper weight to the few duplicated records. 



The results for x and ?/, with the numbers necessary for their final combination, 

 are shown in Table III. The first column gives the place, or in a few cases the region, 

 in which the observations were made. Down to Barbadoes the temperatures were 

 those worked up by myself The nine following are the regions within which the 

 deviations were given and discussed by Koppen. 



The value of x and ij are in all cases expressed in degrees Centigrade, although the 

 original deviations were often expressed in degrees of the Fahrenheit scale. 



