nd from the
garrison. The magazines were flooded soon after the commencement of the
fire; and, although a great many shells burst, yet, very fortunately, no
accident happened to any of the crew. This splendid steamer was 2,600
tons and 600 horse power, and is said to have cost 600,000 dollars.

THE ALLEGED ARREST OF THE MURDERER OF MR DADD.--The following are the
remarks of _Galignani's Messenger_ on the report in the English papers
that Dadd was arrested at Fontainbleau:--"The above statement has been
partially rumoured in town for the last two days, but not in a shape to
warrant our publishing it in the _Messenger_. The police have been
everywhere active in their researches for the fugitive; and we perceive,
by the _Courrier de Lyons_, that, on Thursday night, all the hotels in
that city were visited by their agents, in pursuit of two Englishmen,
one of them supposed to be the unfortunate lunatic. These individuals
had, however, quitted the town on their way to Geneva, previously to the
visit of the police."

THE CARTOONS.--We understand that several of the prize cartoons, and a
selection of some of the most interesting of the works of the
unsuccessful competitors, have been removed from Westminster hall to the
gallery of the Pantechnicon, Belgrave square, for further exhibition.

MACKEREL.--The Halifax papers state that the coast of Nova Scotia is now
visited by mackerel and herrings in larger quantities than ever were
known at this season. In the straits of Canso the people are taking them
with seines, a circumstance without a parralel for the last 30 years.

The _Journal des Chemins de Fer_ says:--"An inventor announces that he
has found a composition which will reduce to a mere trifle the price of
rails for railroads. He replaces the iron by a combination of Kaolin
clay (that used for making pottery and china) with a certain metallic
substance, which gives a body so hard as to wear out iron, without being
injured by it in turn."

COMMERCE AND COMMERCIAL MARKETS.

DOMESTIC.

FRIDAY NIGHT.--We are still without the arrival of the Indian Mail, nor
has any explanation of its detention transpired, except that which we
mentioned last week. No serious apprehension exists for its safety, as
similar detentions, of even much greater duration, have been experienced
in the arrival of the September Mail in former years, as a consequence
of the monsoon.

In Manchester, during the week, the market has been somew