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 It will become white and almost as hard as wax. The dew is favourable to its bleaching. Make your wicks of fine even cotton; give them a coat of melted wax, then cast your mould candles. They will have the appearance of wax in a degree, and one of them (six to a pound) will burn fourteen hours and not run.

in trees.

SIR Humphrey Davy, in his "Elements of Agricultural Chemistry," attributes canker in trees to an "excess of alkaline and earthy matter in the descending sap"; and says "Perhaps the application of a weak acid to the canker might be of use; or where the tree is great, it may be watered occasionally with a very diluted acid."

Remedy for.

THE following method of destroying caterpillars is recommended in the "American Gardener's Calender. "Dissolve a drachm of corrosive sublimate in a gill of gin or other spirits, and when thus dissolved incorporate it with four quarts of soft water. This solution will be found to be the most effectual remedy ever applied to trees, both for the destruction of worms of every species, and of the eggs of insects, deposited in the bark. No danger to the tree is to be apprehended from its poisonous quality, which as it respects them is perfectly innocent.

Another.

THE following mode of destroying caterpillars has been recommended, and would probably prove effectual.