( F. ) 



LOCAL CLIMATOLOGY. 



Bt W. D. WILSON, D.D., 



mOFUSSOB IN HOBART COLLEGE. 



The climate of every locality has certain peculiarities of its own, which, 

 while they are interesting on their own account, are valuable, also, as 

 material towards a general knowledge of the causes which affect and 

 control the diversities of climate in all the different and varied regions 

 of the globe. These facts are of such a nature that no one observer can 

 possibly observe them all, or even any considerable portion of them, by 

 himself alone, unaided by other co-laborers in the same field of science. 

 They must be obtained by a long-continued series of observations ; obser- 

 vations that must be carefully made, intelligibly recorded, computed and 

 averaged, day by day to some extent, and which especially should not 

 be interrupted or omitted for a single day, or even a single period in that 

 day at which observations are to be made. They must also be obtained 

 in many different places at the same time ; and hence the necessity for 

 co-laborers, and many of them too, in all parts of the world. 

 It is to aid in this work that I make the following contribution. 



The temperature, or amount of solar heat, in any place depends upon , 

 the following variables : 



I. Latitude, or distance from the equator ; 



II. Elevation above the sea level ; 



III. Distance from the sea coast ; 



IV. Situation in reference to mountain ranges, etc.; 

 V. Situation in reference to inland lakes, etc. 



