1849-1 Seventeenth Memoir on the Law of Storms. 279 



This average of N. N. E. to South would, without allowance for the 

 Buccleugh's drift, give a track to the W. b. N. I have no further logs 

 of the other ships from which to ascertain if it reached them, and I 

 have marked the track W. N. W. on account of the drift and as passing 

 to the Northward and Eastward of the BuccleugKs position on the 18th, 

 as it evidently did. 



Tracks Y and Z. 



William IF.'s Tyfoons, July, 1845. Pacific Ocean and China Sea. 



The following newspaper notice is all I have met with on the subject 

 of these Cyclones, which though of 1845, I have placed last as from 

 the scantiness of the notice I cannot conveniently divide it, and the first 

 Cyclone is a Pacific Ocean one, and the second very nearly so. We are 

 enabled to mark pretty exactly the track of the first Cyclone, though as 

 we do not know the vessel's rate of sailing, there is some uncertainty 

 about its latitude. The second of them might almost be taken for a 

 heavy monsoon, but the great fall of the Barometer and the excessive 

 violence of the wind induce us to suppose that it was a true Cyclone, the 

 ship being in its S. Eastern quadrant. 



SINGAPORE. 



Calcutta Englishman, 1st Oct. 1845. 



" We have been favoured by a friend with the perusal of a letter, from which we 

 learn the following particulars respecting the damage received by the William IV. 



On the 7th July 1845, the weather became threatening, and the Barometer fell 

 considerably. They were then in Lat. J 9.40. N., Long. 123. 10. E. A strong 

 gale with heavy rain set in from the N. E. round to the N. W., and blowing in 

 heavy gusts. The Barometer continued to fall to 28. 50. and preparations were 

 made for a typhoon. At 10. a. m. the wind blew with such fury that it was 

 impossible to stand on the deck without support, the sea blowing over the ship 

 like a sheet of snow. In an hour the Barometer fell to 28.30. and during the 

 day was as low as 28.20. At 11 the rudder head broke off and the ship broached 

 to, carrying away the topmasts, jib-boom, fore-yard, starboard bulwarks, and 

 quarter and stern boats. Fortunately no water was shipped on the weather side. 

 Such was the force of the wind that the larboard quarter boat was blown to 

 pieces. At 3 a. m. on the 8th, wind veered to S. S. W. and the mercury began 

 to rise, but the fury of the typhoon did not cease until 4.30 a. m. At daylight the 

 wind was S. S. E. and still violent. The larboard main chains were found nearly 

 all broken. 



2 o 



