Section 62
No. 62. A Vessel which emits a Solid when a Liquid is poured from
it.
THE construction of a flagon which utters a sound when liquid is forced
from it. Take a flagon (fig. 62), such as is about to be described, the
neck of which is closed by the plate A B, and the mouth by C D; and
through both these partitions, fitting into them air-tight, let a tube,
E F, be inserted. G H is the handle of the flagon, and K L a tube placed
in the opposite side of the neck, fitting closely into the partition A B
and far enough distant from C D to allow of the passage of water: in C D
let there be a small pipe M such as will utter sound. The flagon may be
filled through the tube
E F, the air passing out through the tube K L and the pipe M; and if we
take the handle of the flagon and incline it so as to pour out the
contents, water will flow out of the vessel through the tube E F, and
into the neck B C through K L the air contained in the neck being forced
out through M gives forth a sound. There should be another hole in A B
through which air may pass again when the vessel is righted.
Section 63.
Index.