440 cook's voyage to june, 



before they get hold. All the north part of the bay 

 is low sandy land, but the east side is very high. 

 About six miles east of Noah's Ark lies Seal Island, 

 the south part of which is said to be dangerous, and 

 not to be approached, with safety, nearer than in 

 twenty-two fathoms. Off the Cape of Good Hope, 

 are many sunk rocks, some of which appear at low 

 water ; and others have breakers constantly on 

 them. 



The latitude of the anchoring-place > q^o qq o 



in Simon's Bay, by observation, ) 



The longitude, - - - - 18 29 E. 



Dip of the south end of the magnetic ) 4 ~ . 



needle, - - J 



Variation of the compass, - - 22 16 W. 



On the full and change days, it was high-water at 

 5 h 55 m apparent time ; the tide rose and fell five feet 

 five inches ; at the neap tides, it rose four feet one 

 inch. 



From the observations taken by Mr. Bayly and 

 myself, on the 11th of this month, when the Cape of 

 Good Hope bore due west, we found its latitude to 

 be 34° 23' S., which is 4' to the northward of its 

 position, as determined by the Abbe de la Caille. 



Having completed our victualling, and furnished 

 ourselves with the necessary supply of naval stores, 

 we sailed out of the bay on the 9th of May, and on 

 the 14th we got into the south-east trade-wind, and 

 steered to the westward of the islands of St. Helena 

 and Ascension. On the 31st, being in latitude 12° 

 48' S., longitude 15° 40' W., the magnetic needle 

 was found to have no dip. 



On the 12th of June, we passed the equator for the 

 fourth time during this voyage, in longitude 26° 16' 

 W. We now began to perceive the effects of a cur- 

 rent setting north by east, half a knot an hour. It 



