1849.] Seventeenth Memoir on the Law of Storms. 255 



separate Cyclones occurring at a time when, as will be seen in the fol- 

 lowing section, great atmospheric derangements were prevalent there- 

 about. I therefore consider it as an East and West track passing a 

 little to the Northward of the Easurain! s position on the 13th, or in 

 Lat. 13° 30' North. 



Track T. 



Eastj rain's Tyfoon in the China Sea and Bashee Passage, 



Nov. \Sth to 2\st 1847. 



I am indebted to Capt. Shire not only for his log book and Chart, 

 but further for much verbal information and a valuable memorandum 

 on the appearances of the weather, which I shall quote largely in the 

 summary following the Log. This Cyclone furnishes us not only with 

 a new track for the Tyfoons of the China Sea, but moreover for a most 

 remarkable anomalous instance thereof; in a Cyclone travelling to the 

 Northward and then (being as I suppose deflected by the high land 

 of Formosa) curving off to the westward of the meridian ! — the first 

 Cyclone which we have found so travelling* in the Eastern Hemisphere, 

 though in the West Indies in the corresponding latitudes this is their 

 common course. 



Abridged Log of the Barque Easurain, Capt. W. H. Shire, from 

 Singapore to China, reduced to Civil Times 



On the 16th Nov. the Easurain was at noon in Lat. 17° 03' North; Long. 

 119° 45' E. ; Bar. 29.70 ; Ther. 82,° with a moderate breeze and fine weather; 

 2 p. m. wind increasing with a high sea and vessel preparing gradually for bad 

 weather. 



17 th Nov. — a. m. to Noon wind increasing and weather growing worse, 

 Barometer having fallen to 29.39. ; Ther. 82°. Wind steady at North ; Lat. 

 Acct. 17o 13'; Long. 119° 41' E. ; p. m. gale increasing from North with 

 great violence, veering to N. W. b. N. at 10 p. m. ; midnight a hurricane. 



I8th Nov. — a. m. wind still increasing, laid too under bare poles; 3 a. m. 

 Bar. 29.04. Daylight it fell calm but no sail made, and it soon after sprung up 

 from the S. W. again with fearful squalls and torrents of rain. Ship making 

 bad weather, scudded under foresail and fore topsail. Noon Lat. 18° 04' N. ; 

 Long. 119o 02' E. ; Bar. 29.29; Ther. 82. p. m. gale continuing ; 7 p. m, 



* The meagre and uncertain notice of the Don Juan's at page 33, I have already 

 noticed as one which we cannot rely upon, though from this it seems now probable. 



2 h 



