Dr Arnoicrs Meie()rologkai Ohserv{itio'ns at Port Antonh. ^55 
sunshine, by forming carbonic acid. In the experiments of M. 
Berard, the fruits were confined in a space that did not exceed 
but six or eight times their volume, and the vessel was so narrow 
that they must have suffered from contact with its heated sides. 
Art. XII. — Meteorological Observations made at Port Antonio^ 
on the North Coast of Jamaica^ 1819 and 18S0. By Wil- 
liam Arnold, M. D., Member of the Wernerian Society.^ 
I DID not at first think of illustrating the annexed tables with 
more observations than were to be seen at one glance as these 
shew the various peculiarities and phenomena of the north side 
of Jamaica ; nor did I intend publishing them, but having comr 
menced the observations for my own satisfaction, at an early 
period, I was encouraged to carry them on, with the view of as- 
certaining two important facts, — First, Whether the moon had 
any particular influence over the seasons ; and Secondly, Which 
of the seasons were favourable, or unfavourable, to European 
eonstitutions. 
The prevailing winds, on the north side of J amaica, are near- 
ly uniform throughout the year ; that is, one year resembles an- 
other, with regard to seasons, which are always anticipated, and 
the planters regulate their crops accordingly. From what I have 
observed during seven years’ careful observation, I am enabled 
to say, with some degree of certainty, that, from the month of 
January to the month of March, strong northerly winds may 
be expected, which continue to blow hard for three, five, and 
seven days, without ceasing day or night, not unfrequently ac- 
companied by squalls of rain and hail. 
April, May, and June, are generally mild; and the sea-breeze 
from the east, varying a point or two to the northward and 
southward, uniformly sets in about 9 a. m. ; and sometimes a 
moderate refreshing current until 5 r. m. This is ^(^nerally sucv 
ceeded by cool^ exhilarating breezes from the land, almost all 
• Read before the Wernerian Natural History Society, l^th Dec. 1821. 
The Tables, as drawn up by Dr Arnold, contained various particulars re- 
specting the weather, which could only have been given in an engraving of a very 
inconvenient Eire.— E d. 
