recovery, with 65 per cent. loss--the exact converse
of electricity under heavy loads.--_Street Railway Journal._
* * * * *
ELECTRICAL ALARM FOR PHARMACIES.
[Illustration: FIG. 1.]
To avoid the errors which sometimes occur in a pharmacy or in a
laboratory, where one bottle is taken for another, especially in the
case of those containing highly poisonous or dangerous substances, a
simple arrangement, shown in the cuts, has been proposed. The
apparatus, in principle, is a species of electrical alarm, in circuit
with an ordinary house telegraph line. It consists essentially, as
shown in Fig. 1, of a battery, bell, and pedestal, provided with an
electric contact on which the flask rests. Fig. 2 shows this contact
or break piece. On a series of pedestals thus arranged and
intercalated in the same circuit the flasks containing poisonous or
dangerous substances, whose inadvertent handling might cause trouble,
are placed. In removing one of these flasks the circuit is closed, and
the electric bell notifies the pharmacist of the danger attendant on
the use of the substances contained in the flask referred to, thus
guarding against the errors due to carelessness, and quite too
frequent, especially in pharmacies.
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