1843.] Ninth Memoir on the Law of Storms in India. 8 1 1 



. ^ Unusual winds from the Eastward 



£ ra ' ( and Simpiesometer falling. 



On the 6th October. 



J At 8 a. m. S. E. gale veering* to 

 . S. W. and blowing till noon, when it 

 ( moderated. 



From midnight furious gale, blowing 

 down trees. Noon Barometer had fallen 

 . from 29.81 on the 4th to 29.51, wind 

 ^ shifted to South, time not marked. At 

 5 p. m. to the West, blowing furiously 

 till midnight. 

 / Gale from North, violent gusts to 

 \ Noon, when N. N. W. and Barometer 



At Pussewa, < beginning to rise, veering to N. W. and 



J finally to West; but only a strong 

 f breeze by 3 p. m. 

 £ Gale continuing from East and E. 



At Allahabad ) N ' E * tiH davli g ht ' when moderating 



At Allanaoaa, / and veering t0 N> E# North? and 



( finally West. 



Allowing for the numerous disturbing causes which inland storms 

 meet with, and for the general nature of the observations, it will be 

 found that the circles I have marked on the chart shew the variations 

 which are described in the winds as the storm travelled up to the 

 North and by East, (the first instance of a storm track, trending to 

 the East of the meridian,) from the neighbourhood of Gya, and pass- 

 ing not far from Patna and between it and Pussewa; though it might 

 perhaps have been better placed about half way between both? But 

 the word " shift," used in Mr. Ravenshaw's report from Patna, inclines 

 me to believe, that the change was, if not a sudden, a very rapid one, 

 whereas that at Pussewa was evidently a veering from North at 

 7 a. m. to N. N. W. at Noon, and N. W. at 1 p. m. or 4 points in 6 

 hours. Beyond Patna we have no farther trace of the storm. 



I should thus be inclined to take this storm as quite a separate one. 

 I have already remarked on and discussed the rates of travelling of 

 the various storms, and no farther observations occur to me, except to 

 remark on the very high rates of travelling, which the Eliza's log and 



* " Veering" and not " shifting ;" and the careful use of these words is important; 

 for the sudden shift, particularly with an interval of calm, indicates the passage of the 

 central portion of a gale; the "veering" that it has passed near the spot. 





