42 



W?n. A. Norton on the Variations 



Figs. 6, 7, 8, 9, 10. 



Curves of the Mean Diurnal Variations of the Temperature, for 1844, and the different 



Quarters of the same year. 



Oh 12345678 9 10 11 12 13 14 15 16 17 18 19 20 2122 23 0* 



760 

 75 



74 



73 



72 

 71 



70 

 69 

 68 

 67 

 66 

 65 

 64 

 63 

 62 

 61 







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60 

 59 



58 

 57 

 56 

 55 

 54 



53 

 52 

 51 



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 45 

 44 



43 

 42 



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39 

 33 



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 ( 



VI. July 



Dec— X. . 

















Jan 



1 

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3 



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Fet 



4 5 6 7 8 9 



id Sept.— VII. A\ 

 ). and March. 



K 



>ri! 



1 

 111 



Mill 



12 1314 15 16 171 

 ly and June. — VII 



1 



8 19 20 2122 23 

 1. 1844.— IX. Oci 



h 



L, Nov. and 



