554 The Meteoi'ologrj of the Plains, ^r. of N. W, India. [April 



in the Mussooree climate; the greatest difference, or 20^ between the 

 dry and moist Bulb ThermoniL-ter, occuned on the 6lh May ; on the 

 same day, the dilFerence at Saharimpore was 32"* 5'. On the 5th April, 

 in the morning, after rain, the differem-e was 7° 5', while at Saliarun- 

 pore, on the 7'h, also after rain, the difference was only 3° 5'. Even 

 when enveloped in a cloud on the Mussooree range, I have found 2* 

 difference between the dry and moist thermometers, and on cloudy days 

 the difference varied from 4° to 10°. Also at the conclusion of the 

 rains, that is, on the 29th September, the mean of the differences on 

 the Mussooree was observed to be 7® 7', while at Saharunpore it was 

 only 6" 7'. 



The meteorological phenomena observed in the years 1827 and 1828, 

 have been reduced to a tabular form, which will give a good general 

 idea of the nature of the climate, as they nearly correspond with those 

 observed in subsequent years; but the peculiarity of seasons, their 

 greater dryness or moisture, later accession of the rainy season"?, or the 

 total absence of a snow-storm, in some years, will, of course, here, as 

 elsewhere, modify the temperature of particular months. 



Results of Meteorological Observations at Mussooree, 



Month. 



Means of i Maximum | Miaimum 

 all the Ob- 1 during each: during each 

 serrations. I Month. Month. 



January.. . 

 February . 



March 



April . . . . . 



May 



June 



July 



August..... 

 September, 

 October.. . 

 November. 

 December. 



Mean Temperature 

 of the Year. 



42-45 



45.42 



53-63 



59-^3 



66-01 



67 12 



67 35 



66-43 



64 04 



57-25 



50 



45 



57-04 



51-5 



63 



69 



77 



78 



74 



71 



69 



69-5 



665 



57 



55 



34.5 



27 



37 



41 



41 



61 



63 



63 



57 



48 



48 



29 



Means of 

 Maxima and 

 Minima. 



43 



45 



53 



59 



59 



67-5 



67-5 



66 



63-25 

 57-25 

 52-5 

 42 



L Mean Temperature 

 >6 5 ^ of the Year from the 

 - J Monthly Maxima 

 f and Minima, 



