NORTH PACIFIC ISLANDS. 



275 



GARDNER' S ISLE, OR MAN-OF-WAR ROCK. 



Man-of-war Rock was discovered by Captain Morell, in 1825. It 

 lies in latitude 25° 03' north, and longitude 1G7° 52' 45" west. The 

 position of this island was correctly determined by Captain Stani- 

 howitch, of the Russian Navy. It is a bare rock, having a reef ex- 

 tending from its southwest extremity. 



TWO BROTHERS, OR REEF SHOAI. 



The position of this shoal is given in latitude 24° 14' north, longi- 

 tude 168° 30' west. On it the Two Brothers was lost. It requires 

 a new determination. The Porpoise and Oregon, from stress of 

 weather, were unable to examine the locality sufficiently to deter- 

 mine its exact position. They saw no signs of it in the search they 

 made. No appearance of a shoal was visible in the position indicated, 

 and I am somewhat inclined to believe it may be another erroneous 

 position for Gardner's Island. 1 have, however, retained it on the 

 chart. 



MARO REEF, 



The Maro Reef was discovered by Captain Allen, in 1820, who 

 named it after his ship. It was visited and surveyed by two of the 

 vessels of the Expedition. It lies in a direction northwest and south- 

 east, is 10 miles in length, and 5 miles in width, which includes the 

 lagoon. The reef itself is not wide, and nearly awash ; heavy 

 breakers extend on its northwest, north, and east sides. On the 

 southwest side there are some sunken patches, which lie between its 

 two southern points. According to our determinations the east side 

 is in longitude 170° 31' 30'' west : its western extremity being in 

 170° 37' 3G" west longitude. The latitude of its southern point we 

 place in 25° 21' 00" north. It is an extremely dangerous reef, and 

 vessels should be careful to avoid it, when in its neighborhood at 

 night. In the daytime it may be seen 6 or 8 miles. The current in 

 its neighborhood was found to set north-by-west. 



