The Sun.
London, England, 1863-09-25 00:00:00

DERBY SMITHFIELD-SErT. 22.

There was a less supply of fat beasts to-day, and prices
were unaltered. The number of sheep and lambs also less
thin last week. The show of fat pigs was good, but sales
were not so brisk. Fat calves were scarce.
Beet 6d to 7d Veal ....... .... 7d to 7id
Mutton ... 7d t 0,714. Pork
Lamb Bd to ..-d Rough fat, 3s 9d per stone.
Hides, 3d to 4ld; calf skins, 5d to 6d.

Foreign Mail Packet List.

MAILS DUE.

Australia and Mauritius, via Southampton. Oct. 19,
via Marseilles Oct. 13.
Arun and Cape Verds, by British packet. Oct. 5.
Cape of Good Hope, Ascension, and St. Helena Sept. 2S.
China, Penang, and Singapore, via Southampton Oct. 2.
via Marseilles Sept. 27.

Falkland Islands
Gibraltar, via Southampton .. •• • .
India (Calcutta), and Ceylon, vii; Southampton Oct. 2
via Al arseilles rcpt. 'Xt.
India (Bombay), via Southampton , Sept. 20.
via Marseilles
Portugal....
Malta, _Egypt, and Aden, via Southampton Sept. 25.
via Marseilles
Newfoundland
Oporto and Vigo
U. S. and British N. America, Ly Brit. packet.... Sept. 30.
by U.S. packet....
by Canadian packet. Sept. 25.
W.C. of Africa, Madeira, and Teneriffe .. Oct. 10.
Bahamas, via Now York Oct. 22.
Mexico
All parts of West Indies, including Chili,
l'eru '1 Sept. 2S.
California. and Britimh Columbia.

Fires have been particularly freqaent of late in
the department of the Isere. A large farm at Passag or
near Virieu, was reduced to ashes two nights back. The
flames spread with such rapidity that the farmer had some
difficulty in escaping with his family. A considerable por-
tion of the year's harvest was destroyed, and several head
of cattle, a kid, and a number of sheep perished.

THE TIDAL WAVE.—The PhitosophicaLliagazine
contains a curious essay by Dr. J. R. Mayer, of Heilbronn,
on "Celestial Dynamics,'' in which amongst other things the
author proves that the tidal wave causes a diminution in.
the velocity of the earth's rotation. His arguments may
be summed up as follows :—The attraction of the sun and
moon is the catue of the tides; that is, the waters of the
sea are drawn towards the meridian above and below which
the moon culminates. Now, if the waters met with no re-
sistance, such as friction, the elevated parts of the tidal
wave would exactly coincide with the moon's meridian, and
there would be loss of vis viva. Practically, however, the
friction experienced by the waters retards their motion, so
that the flow of the tidal wave is delayed, and high water
occurs in the open sea two hours and a half after the transit
of the moon across the meridian of the spot. Hence the
more elevated wave is always to the east of the moon's
meridian, and the sea must therefore press and flow more
powerfully from east to west than from west to east. The
ebb and flow of the tidal wave, therefore) consists not onl9
in an alternate rising and falling of the waters, but iu
slow progressive motion from east to west; in other words►
a generally westerly current is produced in the ocean. pu
the earth rotates from west to east, since the sun sets in the
west; and therefore it turns in a contrary sense to the
direction of that current. The earth here plays the part of
a flywheel, the moveable part of its surface adhering, as it
were, to the relatively fixed moon, and being dragged in s
direction opposite to that of the earth's rotation, in conse-
quence of which action takes place between the solid an'!
liquid parts of this flywheel, resistance is overcome, and the
rotatory effect diminished. To make this clearer, suppose
ball to revolve in a socket coated with some glutinous mat-
ter; its rotation will evidently be impeded by the glutinous
particles it has to draw after it; and, in the problem before
us. the glutinous matter is replaced by a force of attraction
acting in a contrary sense to the rotatory motion.

Full benefit of reduced duty obtained by pur-
chasing Horniman's pure Tea; very choice at 3s. 4d. and
4s. "High Standard" at 4s. 4d. (formerly 4s. Bd.), is tb°
strongest and most delicious imported. Agents in ever),
town supply it in packets.
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