as may be required to fill the vacant space produced by the withdrawal
of the liquor from time to time, and affording this air no egress, thus
hermetically sealing the barrel. This is effected by means of a valve
opening inward, at the upper portion of the peg, so long as the density
of the exterior air is in excess of that within. This action takes place
at the very instant of the flow of the liquid, and ceases with it; for
at that instant all further supply is shut off, there being no further
pressure.

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THE LARGE TREES OF TEXAS.--The large court-house of Navarro county is
said to have been covered with shingles made from a single cedar tree.
The oaks, pecans, and cedars of that section of the country attain
an immense size. A pecan tree in Navarro county, on the banks of the
Trinity, measured twenty-three feet in circumference. The cedars are
often more than 100 feet high.

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ELECTRIC MESSAGES.--Although it may require an hour, or two or three
hours, to transmit a telegraphic message to a distant city, yet it
is the mechanical adjustment by the sender and receiver which really
absorbs this time; the actual transit is practically instantaneous,
and so it would be from here to China, so far as the current itself is
concerned.

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