212 



Report on the Progress of the Magnetic Survey. [No. 3. 



nutes before 



Sunrise. 



Temperature^ 



Minute before Sunrise. 



Tempe' 



45 





33 





45 



54 



40 





32 





35 



4-7 



35 





2-9 





30 



43 



30 





30 





20 



4-6 



25 





3-0 





15 



40 



20 





31 





10 



4-6 



15 





3-2 





Sunrise, 



4-6 



10 





3.2 









5 





32 









Sunrise, 





3-2 



Tabi 



,E B. 







SUBPUT IN KUTCH 



11th March, 1857. 







Minutes before 



Sunris 



e. Temperature. 









3°5 





11-8° cent. 









30 





11-8 









25 





11-7 









20 





116 









15 





11-2 









10 





106 





% 





5 

 3 





9-8 

 104 







Sunrise, 





10-7 





The minimum temperature of the air varies much in the same 

 places, and whilst for instance I once observed in Mooltan a tem- 

 perature of nearly 0° in the morning, the lowest temperature on the 

 next was 6° and even 7° centigrade. These variations are chiefly 

 produced by clouds, which modify the radiation. 



During the months of December and January there were very 

 .few days quite cloudless (only three in January). 



The weather was very variable between the 20th January and 1st 

 February, during which time some heavy showers fell, which made 

 the temperature of the air throughout the whole day uniformly cool. 



