PROFESSOR SMITIVS JOURNAL, 2355 
ourselves by studying the constellations, of which the 
northern ones will soon leave us. The sea begins to ex~ 
hibit a greater abundance of animals. Cranch is at length 
preparing to fish wp whatever he can catch. In the last 
few days we have constantly seen and caught a great 
number of Portuguese men-of-war (Holothuria physalis ) ; 
also asmall eatable Velilla (which I sketched) ; a Salpa? 
which emits light, and a Medusa, with four tentacula. On 
board the Congo I saw a Loligo vulgaris, and a fragment 
of a small Nautilus, covered by a species of Lepas. 
The Congo has for some days been sailing at a slow 
rate, and is now again taken in tow. Cranch, I fear, by 
his absurd conduct, will diminish the liberality of the 
Captain towards us. He is like a pointed arrow to the 
company. 
April 5th. ‘To-day the deep azure colour of the water 
has suddenly changed into a dark sea-green colour. Last 
night we crossed the Tropic of Cancer. The latitude 
to-day at noon is 22°. 
April 7th. The water of the sea has again resumed. its 
usual colour. ‘The anomalous temperatare of the sea, its 
green colour, and the great number of Mollusca that were 
seen, seemed to indicate that we were in soundings, but a 
line of one hundred fathoms was tried without success. 
April 8th. We gotin sight of the island of Bonavista, and 
passed its S. E. side at the distance of .... leagues, Its 
appearance resembled that of the eastern Canaries. Its 
height can scarcely be greater than theirs, but none of its 
higher hills had a volcanic form. 
