158 



On the Statistics of Dukhun. 



[Jan.. 



quantity of rain falls in the months of June and July. The greatest fall 

 of rain in any one day was 2 58 inches, on the 6th July, 1823 ; at Bom- 

 bay, on the 24th June, 1828, there fell 8-67 inches; and at Hurnee, on 

 the 15tli June, 1829, there fell 8'133 inches n\ 24 hoars. 



The mean annual fall of rain for all England, from many years' obser- 

 vations, appears to be 32-2 inches, but the means of different counties 

 vary from 67 inches in Cumberland to 19 inches in Essex. 



The clouds supplying the monsoon rains in Dukhun would appear to 

 have a low elevation, as I have frequently seen through breaks as they 

 were passing swiftly from w^est to east, a superior stratum, apparently 

 stationary, or moving slowdy in a contrary direction, and gilded by the 

 sun's rays. 



Winds. — The great features in the observations respecting the winds, 

 are the prevalence of winds from the west and westerly quarters, east 

 and easterly quarters, and the extreme rareness of winds from the north 

 and south, and the points approximating to them ; and these features 

 appear to be constant in successive years. In 5229 observations the 

 wind blew from the west, or points adjoining, 2409 times; and in this 

 number the S. W. (305), and N. W. (122), amount only to 427. From 

 easterly points 949 times, including 246 from the N. E. and S. E., thus 

 leaving 703 from the east. From the north 115 times, and from the 

 south 36 times only. Another feature is the frequent absence of wind, 

 particularly at sunrise, and more so in the months of January, February, 

 March, October, and November than in other months of the year. The 

 cessation of wind from May to September inclusive is comparatively 

 rare ; and, generally, throughout the year the absence of wind at 4 p. m., 

 rnay be looked upon as unusual. In my records there are 1720 observa- 

 tions of " No wind," and 847 of these belong to sunrise, 452 to 9 — 10 



M., and 304 only to 4 p. m. 



The observations were continued through five years, three times daily; 

 sunrise, 9—10 a. m., and 4 p. m. There is considerable uniformity in the 

 direction of the wind in the same months in consecutive years. The 

 westerly winds begin to prevail in March, alternating with easterly 

 winds, which blow the latter part of the night ; but the easterly winds 

 disappear as the monsoon approaches, and do not re-appear again till 

 October. In October the winds are variable, and the records of "No 

 wind," increase suddenly and rapidly. A few easterly winds, however, 

 about the end of the month, indicate the change which is to take place ; 

 they gradually increase, and with those from the N. E. and S. E., almost 

 entirely supersede the winds from the westerly points during the cold 

 months. 



