CHAPTER IX. 



S O O L O O. 

 18 42. 



On the evening of the 21st of January, the Vincennes, with the 

 tender in company, left the bay of Manilla. I then sent for Mr. 

 Knox, who commanded the latter, and gave him directions to keep 

 closely in company with the Vincennes, and at the same time pointed 

 out to him places of rendezvous where the vessels might again meet 

 in case any unavoidable circumstance caused their separation. I was 

 more particular in giving him instructions to avoid losing sight of the 

 Vincennes, as I was aware that my proposed surveys might be im- 

 peded or frustrated altogether, were I deprived of the assistance of the 

 vessel under his command. 



On the 22d, we passed the entrance of the Straits of San Bernadino. 

 It would have been my most direct route to follow these straits until 

 I had passed Mindoro, and it is I am satisfied the safest course, unless 

 the winds are fair, for the direct passage. My object, however, was 

 to examine the ground for the benefit of others, and the Apo Shoal, 

 which lies about mid-channel between Palawan and Mindoro, claimed 

 my first attention. The tender was despatched to survey it, while I 

 proceeded in the Vincennes to examine the more immediate entrance 

 to the Sooloo Sea, off the southwest end of Mindoro. 



Calavite Peak is the north point of Mindoro, and our observations 

 made it two thousand feet high. This peak is of the shape of a 

 dome, and appears remarkably regular when seen from its western 

 side. On approaching Mindoro, we, as is usual, under high islands, lost 

 the steady breeze, and the wind became light for the rest of the day. 



