1832.] 



in the vicinity of Dehli. 



509 



Table II. Mean Temperature of each month for three years, as observed at various 

 places in the vicinity of Dehli. 





16'^. 



1828. 



18*). 



MbAN. 



1)11-1. tliUM MnAA. 





day. 



uight. 



day. 

 o 



night. 



day. 



night. 



day. 



night. 



day. 



night. 





o 















« 



» 



6 







o 



January, . . 



56.7 



51.4 



53.7 



50.3 



58.4 



53.5 



56.3 



51.7 



— 19.7 



— 19.1 



February, . . 



66.0 



58.6 



56.8 



51.8 



62.0 



55.8 



61.6 



55.4 



— 14.4 



— 15.4 



March, .... 



74.0 



66.0 



70.6 



63.8 



73.0 



66.0 



72.5 



65.3 



— 3.5 



— 5.5 



April, .... 



83.8 



75.5 



79.3 



74.2 



86.6 



77.9 



83.2 



75.9 



-f 7.2 



+ 5.1 



May, 



yo.4 



t . 



87.0 



82.2 



96.7 



88.9 



91.4 



85.6 



+ 15.4 



+ 14.8 



June, .... 



91.7 



. . 



93.7 



90.4 



92.0 



90.0 



92.5 



90 2 



+ 16.5 



+ 19.4 





90.1 



. , 



88.2 



85.5 



79.7 



80.6 



86.0 



83.0 



+ 10.0 



+ 12.2 



August, . . 



8o.5 



. , 



83.6 



80.9 



82.5 



79.4 



83.9 



80.1 



+ 7.9 



+ 9.3 



September, 



83.2 



79.3 



85.2 





81.7 



77.6 



83.4 



78.5 



+ 7.4 



+ 7.7 



October, . . 



77.7 



70.2 



76.2 



71.6 



77.5 



72.4 



77.1 



71.4 



+ 11 



+ 0.6 



November, 



65.7 



60.3 



65.2 



55.2 



65.8 



61.7 



65.6 



59.1 



— 10.4 



— 11.7 



December, 



57.1 



53.1 



62.3 



54.8 



57.3 



■ 52.1 



58.9 



53.3 



— 17.1 



— 17.5 





76.8 1 





75.2 





76.1 



71.3 



76.0 



70.8 







The mean of six observations of the temperature of water in wells from 74 to 

 94 feet deep gives 74°. : varying from 71° to 78°. 



Table III. Temperature of the Air — Depression of Moist Thermometer (D), Point 

 of Saturation (S), or the dew Point, and mean comparative Tension, (T.J 



Year and Month. 



April, 1827. , 



May, 



June, 



July, 



August, 



September, . . . 

 October, _ . . . 

 November, . . . 

 December, . . . 

 January, 1828. 

 February', . . . 



March, 



April, 



May, 



June, 



July, 



August, 



September, . . . 



October, 



November, . . . 

 December, . . . 

 January, 1829. 

 February, . . . 



March, 



April, 



May, 



June, 



July 



August, 



September, . . . 



October, 



November, . . . 

 December, . . . 

 January, 1830. 

 February, . . . 

 March, ........ 



Temp. 



67.0 

 77.5 

 82.1 

 82.1 

 79.3 

 74.9 

 61.5 

 49.7 

 46.5 

 43.8 

 42.3 

 52.5 

 63.1 

 71.3 

 82.8 

 81.7 

 78.4 



8.9 

 9.9 

 9.4 

 6.3 

 2.7 

 2.3 

 4.9 

 4.1 

 0.8 

 1.2 

 1.5 

 5.1 

 8.3 

 14.0 

 11.9 

 5.2 

 0.8 



Temp. 



52-4 

 63.5 

 69.0 

 73.8 

 75.9 

 72.0 

 53.8 

 42.4 

 45.2 

 41.8 

 39.7 

 43.3 

 48.7 

 46.0 

 65.5 

 75.0 

 77.5 



96.5 

 92.3 

 85.0 

 87.0 

 87.0 

 72.0 



100.6 

 96.1 

 84.0 

 83.9 

 86.6 

 84.5 

 72.7 

 62.4 

 66.0 

 69.8 

 77.3 



20.7 

 12.6 

 6.0 

 7.8 

 14.0 

 14.0 



26.0 



17.5 



5.0 



4.9 



11.9 



18.4 



15.4 



13.0 



14.7 



8.8 



15.8 



66.0 

 75.4 

 77.3 

 76.8 

 66.8 

 47.2 



60.2 

 71.7 



77.7 

 77.7 

 70.0 

 54.2 

 44.1 

 35.0 

 35.2 

 55.9 

 49.8 



Temp 



76.0 

 73.0 

 68.0 

 74.0 

 90.0 

 99.0 



17.0 

 13.0 

 12.0 

 15.0 

 23.2 

 30.0 



44.8 

 50.8 

 46.4 

 47.3 

 50.2 

 45.5 



