Account of the Rain which falls at Bombay. 143 



In consequence of Dr Anderson having used, in the con- 

 struction of this table, Tobias Mayer^s law of mean tempera- 

 ture, which gives 



For the equator, 

 For the pole, 



Instead of 



For the equator, 

 For the coldest point. 



85° Fahr. 

 31<^ 



81 J° Fahr. 



-3|° 



the results in the table are necessarily incorrect. But even 

 if we recompute it according to the most approved law of tem- 

 perature, it does not afford even approximate results. 



At the equator, for example, the annual fall of rain should, 

 in the corrected table, be 64 J inches ; whereas at Bombay, in 18° 

 of latitude, it is as high as 78 inches. In the east of Scotland, 

 in latitude 55° — 57°, the annual fall of rain, as deduced from 

 a most extensive series of accurate observations, is 26 inches ; 

 whereas at Paris, in latitude 48°, the annual fall of rain on 

 an average of 20 years is scarcely 20 inches ; where, accord- 

 ing to the table, it should have been much greater than in 

 Scotland. We shall return again to this subject in an early 

 number. 



