350 The Meteorology of tlie Flains [AtRm 



in consequence, an equally varied cultivation. To display this connec- 

 tion of climate with vegetation, it is desirable to give the temperature, 

 so as to show the rise and foil of the thermometer ; I have therefore 

 thought it advisable to commence with the month of March, when in- 

 crease of temperature takes place so rapidly. The thermometer was 

 placed on the northern side of the house, but too near, fur the extremes 

 to he accurately ohserved, as, though the heat Avas probably greater, yet 

 llie cold was probably less, from the more confined radiation, as the 

 minimum outside of a tent and not far from the house, was 27°, when 

 the other was 08'' 5\ 



March April Jlay June July Aug. Sept. Oct. Nov, Dcr, Jan. Feb. 



Maxima 89 96 105-5 105 95 5 92 91-5 905 84 69 64-5 81-5 



Minima 47 62 67-5 73 76 78-5 64 5 57-5 45-5 44 38-5 45 



Means 68 79 86 5 89 86 75 85-25 78 74 64.75 56.5 52-5 63-25 



Mean temp. . . . 73-58 



In connection with the thermometric observations at Saharunpore in 

 the open plains cf Upper India, it is interesting to give that of the 

 Deyra Valley, in the same latitude, and about foity-five milps to the 

 east. The observations weie made by my late friend, the Hon. F. Shore, 

 while Assistant Commissioner in the Deyra Doon. 



March April May June July Aug. Sept. Oct, Nov. Doc. Jan. Feb. 





86 



93 



98 



101 



94 



90 



91 



86 



70 



7J 68 73 





48 



53 



64 



71 



72 



72 



66 



61 



44 



42 37,57 45 



Diff 



38 



40 



34 



30 



22 



18 



25 



25 



26 



29 30-25 28 





67 



73 



81 



86 



83 



81 



78.5 



73-5 



57 



56-5 .52-8 59-5=70-65 



From the greater number of cloudy days, as well as from the greater 

 moistness of the climate, it is found difficult to ripen some fruits which 

 succeed in the plains, though others, as Bengal Plantain, Guavas, and 

 several varieties of Limes, arrive at greater perfection. The greater 

 degree of moisture must be ascribed to the surrounding mountains, and 

 to the quantity of vegetation with which the uncleared parts of the 

 valley are covered. Like other valleys, it is also more close, as the 

 winds cannot blow so freely as in the open plains. The evenings and 

 nights are, however, pleasant, as a cool breeze generally descends from 

 the mountains, and at some seasons of the year the climate is delight- 

 ful. 



In the ascent of the Himalayas, in the course of the Geological sec- 

 tion, Jurreepanee is a mid-way station, where I have occasionally taken 

 observations, and of which the temperature feels cool to those who are 

 ascending, but warm to those descending from, the mountains : 



