1822.] 
[ 459 ] 
REPORT OF CHEMISTRY AND EXPERIMENTAL PHILOSOPHY. 
— 
HE Academy of Arts and Sciences at 
Boston has published a series of thirty- 
three years’ observations, made from 1786 
to 1818, at Salem in Massachusetts, by 
which the difference of the temperature 
of Europe and America is ascertained :— 
Lat. Mean ‘em. 
Rome--+++++ 41° 53” 60° 44” 
Salem seeeesesseee 42 33 48 68 
Difference of temp. «+--+ 11° 36” 
In an inquiry on. the supposed attraction 
of spherical bodies, and the supposed 
repulsion of elastic. fluids, M. LAPLAcE 
unfolds the following law :—That the quan- 
tity of heat which is disengaged from a 
bulk of gas passing under a determined 
pressure from a higher into a lower tem- 
unknown Gulf of Syrtis has been thoroughly 
explored, and the survey of the whole 
coast between Tripoli and Alexandria is 
now, for the first time, entirely completed. 
—Iu addition to the valuable hydrogra- 
phical information acquired by this survey, 
the sites of numerous ancient cities and 
stations have been accurately determined, 
and such data obtained, as will throw 
very important elucidations on the wri- 
tings of Herodotus, Scytax, Strabo, Leo, 
and Edrisi. 
ee acd 
STATE OF THE THERMOMETER AND 
BAROMETER IN LONDON. 
Thermometer. ay 
: - Night. Day. 4. Morning. 
perature, is proportional to the square Oct. 23 ---- 48 70 29°50 
root of this pressure. This law equally D4 woos |. 67 68 45 
results from the more rational theory, that Bhi tadiae 63 74 55 
increase of heat is received motion, and 96 esee 58 69 45 
decrease imparted motion: but M. La- QT see 58 68 50 
place has long been the high-priest of that Ave oes |-4KAG 67 /80 
superstitious philosophy which recognizes 99. seee).|> 58 69 92 
principles of attraction and repulsion. 30 «+++ | 60 70 80 
Capt. SmitH, of his Majesty’s ship Ad- AA) mieiste Ale 159 3 63 
venture, who has been employed for several Nov. 1 «+++ | 65 70 79 
years past, under the orders of the Lords 2 seee | 68 68 80 
of the Admiralty, in surveying several St cto ls Gd. 65 85 
parts of the Mediterranean, has lately re- 4 acs 50 50 30:12. 
turned from an arduous survey of the 5 sees) 62 64 10 
coast of Africa. He Jeft Malta on the 5th 6 ++ 56 66 8 
of March last, for Bengazi, where he ar- Teese | 57 60 29°90 
ranged with the land party destined to B wees | 54 60 80 
explore the interior, under the charge of Q sees | 60 65 70 
Lieut. Beechy, respecting their journey to 10 +++. | 64 67 30° 
Cyrene. The Adventure then proceeded 11 «+++ | 56 66 9 
on to Alexandria, where she arrived on 12 ee+2 | 59 76 12 
the 23d of March. Capt. Smith then made 13 --.- 58 64 20°75 
a complete survey of the two harbours, 14. +--+ | 54 65 65 
‘the town, and its fortifications, and fixed 15 see 59 64 40 
its position as to latitude and longitude, 16 sees 48 60 29°37 
Theace he proceeded along the coast to 17 «-- 54 62 50 
Catabathmos ; took astronomical observa- 18 sce 54 68 67 
tions on shore, at the several ports and 49)» fe) 1166 68 66 
headlands, and completed a coast-survey 20 ++. 63 64 50 
of the whole distance from Alexandria to 21 ---- | 60 64 55 
Doina, at which place the operations ter- QQ«.we | 64 68 70 
minated on the preceding voyage of the QB cove | 66 62 65 
‘Adventure. By this service, the hitherto 24 «e+- | 62 70 50 
MONTHLY COMMERCIAL REPORT. 
f ——— 
PRICES or MERCHANDIZE, = Oct. 25. Nov, 20. 
Cocoa, W.I, common -- £2 8 0 to 210 0] 2 8 QO to 2140 O perewt. 
Coffee, Jamaica, ordinary 416 0 — 5 3 0} 415 0 — 50.0 do. 
——_—_———__, fine -- 612 0 — 7 20} 6 6 0 — 616 0 «do, 
; Mocha «-+++ee2 810 0 — 1010 0 7 0 0 —1010 0 . do, 
Cotton, W.1.common-- 0 0 7 — 00 8] 0 0°7: — 0 0 8 perlb, 
, Demerara:-+-++ 0 0 8 — 0 0101] 0 0 BE — 0 011. do. 
Currants .-+--+-. sosoee 5 2 0 — 510 0)5 00 — 
5 12 0 perewt. 
Figs, 
