24 



Art. 1.— T. Terada: 



case, «1 increasing generally towards the interior of the continent 

 as was evidently shown in the first part of the present communi- 

 cation. Tlie I'eason is that the 



Fig. 9. 



0-6 



0-5 



0-4- 



0-3 



0-2 



01 



fi 



-f>- 



>' 



0-2 O-* 0-6 0-8 



»1 : mean diurnal amplitude. 

 K : continentality. 



assumption (20) roughly re- 

 present the course of a only near 

 the coast, while for the interior 

 of the continent, there must be 

 added another term on the right 

 side of (20), which is to re- 

 present the gradual increase of a 

 towards inside, for an example 

 such linear term as in (11). 

 For the present, we are still at 

 a loss, on account of the want of 

 necessary data, how to determine 

 the best expression of a appli- 

 cable for the majority of cases. 

 In actual cases, a will depend 

 not only on the distance of the 

 station from sea, but on many 

 for examples, cloudiness, prevailing winds 



1-0 



R 



other conditions, 

 etc., etc. 



9. It must be remarked that the value defined by us as the 

 continentality is a quantity of very arbitrary character. 



We could have better chosen the diameter of the circular area 

 smaller or greater than 10°. Probably there may be found a more 

 adequate magnitude of the radius for which the relation between 

 the continentality Ä'and the amplitude ai may turn out more con- 

 spicuous. 



Remembering that the irregularity in the daily variation of 

 temperature must gradually disappear with the altitude, and that 

 the higher the layer, the more conspicuous relatively will become 

 the influence of the remoter area of the earth's surface, it will be 

 more appropriate to consider a determined by a quantity, A say, 

 instead of K, which is defined by 



