An Experimental Farm,

As a school of practical husbandry for a part of central France, has been formed by the celebrated Abbe de Pradt.  It is situated about a league from Avranches, on the great road from that city to Bort, in the department of Correze.—­Foreign Q. Rev.

A Tunnel under the Vistula, at Warsaw,

Has been projected.  This mode of communication will be of the utmost utility, especially at the times of the breaking up of the frost, when all intercourse is interrupted.  The architect is a foreigner, and has engaged to complete the work in the space of three years.—­Paris Paper.

Small White Slugs,

In gardens, are more injurious than the larger variety, because their diminutive size escapes the gardener’s eye.  A good way to keep them under is to make small holes, about an inch deep, and about the diameter of the little finger, round the plants which they infest.  Into these holes the slugs will retreat during the day, and they may be killed there by dropping in a little salt, quicklime in powder, or by strong lime and water.—­Gardener’s Mag.

Turkish Method of Preserving Filberts.

When perfectly ripe, remove the husks, and dry the nuts, by rubbing with a coarse cloth; sprinkle the bottom of a stone jar with a very little salt; then place a layer of filberts, adding a small quantity of salt between each layer.  The jar must be perfectly dry and clean.  Secure the top from air, and keep them in a dry place; and, at the end of six months, they will peel.—­Ibid.

Extinction of Fires.

When a chimney or flue is on fire, throw into the fire-place one handful after another of flower of sulphur.  This, by its combustion, effects the decomposition of the atmospheric air, which is, in consequence, paralysed, or, in effect, annihilated.

Oysters.

After the month of May, it is felony to carry away the caltch (the spawn adhering to stones, old oyster-shells, &c.) and punishable to take any oysters, except those of the size of a half-crown piece, or such as, when the two shells are shut, will admit of a shilling rattling between them.

The liquor of the oyster contains incredible multitudes of small embryo oysters, covered with little shells, perfectly transparent, swimming nimbly about.  One hundred and twenty of these in a row would extend one inch.  Besides these young oysters, the liquor contains a great variety of animalcules, five hundred times less in size, which emit a phosphoric light.  The list of inhabitants, however, does not conclude here, for besides these last mentioned, there are three distinct species of worms (called the oyster-worm,) half an inch long, found in oysters, which shine in the dark like glow-worms.  The sea-star, cockles, and muscles, are the great enemies of the oyster.  The first gets within the shell when they gape, and sucks them out.