General Science. 
miles. It struck me with some surprise to observe, that on the 
18th of July, (Lat. 71° 20') after a mild clear day, a consider- 
able hillock of ice formed on the sea. I never experienced such 
a circumstance in the highest latitudes, after the middle of June. 
The thermometer on the preceding day stood at 40°, 45°, and 
48°; in the night it must have fallen below 30°. This curious 
fact is to be attributed to the loss of heat in the night, when 
the sun’s altitude was little or nothing, while in higher latitudes 
at the same season, it retains a considerable altitude throughout 
the twenty-four hours, and thereby produces a more equitable 
temperature.” — Letter from Captain Scoi'eshy. 
55. Bottle found on the Coast of Brazil. — Bahia^ Wth July 
1820. — To the Editors of the Edinburgh Philosophical Journal. 
Gentlemen, We beg leave to hand you a copy of a paper forward- 
ed to us by Messrs Lowes and Brown, Ma^aio, in a letter dated 
15th June. We are, &c. Arthue & Peter Lowe.” — Ma^aio^ 
15th June — On the 10th instant, a messenger arrived to 
the Governor of this place with a bottle containing a printed 
paper, copy of which we inclose : it was picked up by a Jan-^ 
gadeira on the 5th instant, on Barra Grande, about 63 miles 
to the northward of this port 
« N°33. 
“ The bottle which contains this card, was thrown in the sea 
in Lat. 12° 56' S., Long. S9° 10' W. at noon on the 1st day of 
April 1820, from the ship Ospray of Glasgow, which sailed from 
Greenock on the 20th day of February 1820, on a trading 
voyage round the world. Whoever finds this, is requested to 
insert a notice of the time and place, in some literary or political 
publication, with the view of establishing facts relative to the 
currents of the ocean. (All well).” 
56. Report on Scoreshfs Account of the Arctic Regions » — A 
report on Captain Scoresby’s Account of the Arctic Regions, by 
Baron Portal, Minister of Marine and of the Colonies, has been 
published in the Annales Maritimes et Coloniales,” for July 
• The owner of a small vessel called a Jangada ; they are used for coasting; 
and fishing. 
•j* Ma^aio is in Lat, 9® 42’; the longitude we have not ascertained,. 
