474 Mr. H. F. Blanford on the Origin of a Cyclone. [June 17, 



Observed Temperatures. 





23rd. 



24th. 



25th. 



26th. 



27th. 



10 h . 



4". 



10 h . 



4 h . 





4\ 



10 h . 



4 h . 



10 h . 



4 h . 





o 



O 







o 



o 



o 



o 



o 



o 



o 





80 



85 



80 



83 



S4 



90 



84 



87 



81 



86 





85 



87 



83 



85 



83 



80 



82 



84 



81 



85 





81 



86 



83 



83 



82 



83 



82 



82 



81 



81 





84 



82 



83 



85 



83 



86 



83 



85 



81 



84 





85 



85 



85 



85 



85 



86 



84 



84 



84 



84 





83 



87 



84 



87 



84 



87 



83 



86 



83 



85 





84 



85 



86 



84 



84 



84 



83 



83 



83 



84 



Humidities. 

 Saturation =100. 





23rd. 



24th. 



25th. 



26th. 



27th. 



10 h . 



4 h . 



10 h . 



4 h . 



10\ 



4 h . 



10 h . 



4*. 



10 h . 



4 h . 





78 



68 



70 



63 



67 



50 



54 



42 



55 



35 





77 



70 



78 



77 



85 



86 



80 



67 



68 



64 





91 



91 



87 



87 



91 



87 



91 



91 



86 



91 





93 



85 



83 



89 



86 



85 



86 



83 



84 



87 





79 



75 



79 



79 



79 



79 



79 



75 



71 



64 





87 



79 



79 



76 



87 



72 



83 



75 



83 



71 





75 



71 



72 



71 



75 



71 



71 



75 



71 



64 



[See Table, Prevalent Winds, p. 475.] 

 A comparison of the above data* shows as follows : — 

 On the 23rd of October the barometric pressure was about 0*005 higher 

 at Chittagong and Dacca than elsewhere around or on the bay. From 

 Calcutta to Galle, at Akyab over the northern and down the western part 

 of the bay, it was nearly uniform, being slightly lower at Madras ; but to 

 the west of Acheen and the Nicobars it was from 0*15 to 02 inch lower 

 than around the coasts of India and Arakan. In Bengal and down the 

 west coast of the bay the winds were light from between S. and E., and 

 the same was the case over the bay down to the latitude of the Nicobars. 

 In lat. 4° to 6° 30' N., in the region of barometric depression, the ' J. C. 

 Botelbhoe ' experienced rain and cloudy weather, with a moderate breeze 

 from W.N.W. during the latter part of the da}', and the ' St. Marnock ' 

 about 2° further north had similar weather and a heavy sea from W.S.W., 

 hut the breeze was light from E. and S.E. It appears from the log of the 

 last-named vessel, and that of the ' Leonie 'f, that from the Equator up 

 to lat. 5°, W.N.W. winds with rain and squally weather had prevailed for 

 many days previously (at least, from the 1 1th of October) ; and this current, 



* Some additional data are given from ships' logs, &c. 

 t Of which I have received only a cursory abstract. 



