48 CAPTAIN TUCKEY'S NARRATIVE. 



served, that when they rose in the direction of the wind, 

 they could reach a considerable distance, but when against 

 the Avind, they dropped again almost immediately ; when 

 the rise was in an oblique direction to the wind, they some- 

 times described a considerable curve, until they got before 

 the wind, and this without any assistance from the wings, 

 the only movement of these members being at the moment 

 of their quitting the water, Avhen they had for a few instants 

 a quick fluttering motion. Four different species of these 



fish were taken. 



After passing Cape Pahnas and entering the Gulf of 

 Guinea, the sea appeared of a whitish colour, growing more 

 so until making Prince's island, and its luminousity also 

 encreasing, so that at night the ship seemed to be saihng 

 in a sea of milk. In order to discover the cause of these 

 appearances, a bag of bunting, the mouth extended by 

 a hoop, was kept overboard, and in it were collected 

 vast numbers of animals of various kinds, particularly 

 pellucid Salpce, with innumerable little crustaceous animals 

 of the Scyllarus genus attached to them, to which I think 

 the whitish colour of the water may be principally ascribed. 

 Of Cancers, we reckoned 13 different species, eight having 

 the shape of crabs, and five that of shrimps, and none more 

 than a quarter of an inch in length ; among them the Cancer 



