r home ready for the fresh cartridge to be inserted.
When these are in place, the barrel and cylinder are returned to the
position shown in Fig. 1, and are automatically locked by the bolt, 3.
All is then ready for firing. The middle finger is placed on the cocking
lever, and the forefinger within the trigger guard. The cocking trigger
is drawn back, taking with it the firing trigger for the greater part of
its stroke. At the same time the lifter, 8, which is pivoted to the
cocking lever, engages with a ratchet wheel (seen in Fig. 2) attached to
the cylinder, and rotates it through one-sixth of a revolution. To insure
the exact amount of rotation, a heel on the trigger, not to be seen in
the engravings, engages in one of the six slots (Figs. 1 and 2) formed
round the barrel. The end of the slot is square, and comes up against the
heel, which tightly grips the cylinder, and holds it steady while firing.
A toe-piece, just over the figure 4, in Fig. 3, holds the cylinder when
the cocking trigger is in its normal position. The cocking lever also
compresses the main spring, 7, and holds it in this state until the
firing trigger, 12, is pressed by the forefinger against the sear, 9, and
the hammer, 5, is driven forward against the cartridge. If the pistol be
not fired, the release of the cocking trigger takes the pressure off the
spring, and there is thus no danger of accidental discharge.

It will thus be seen, says _Engineering_, that the weapon presents many
advantages. It can be loaded on horseback when one hand is engaged with
the reins; there is nothing to obstruct the aim, and the act of firing
does not throw up the muzzle, for the two operations of cocking and
shooting are separate, and consequently the latter needs only a very
light pressure of the finger to effect it. The breech is well protected,
so that the flash from a burst cartridge cannot reach the face of the
user. The mechanism is as nearly dust proof as possible, and can be
entirely taken to pieces and cleaned in a few moments, and the whole
forms as handy a weapon as can be desired, where rapid and accurate
shooting is required.

* * * * *

[JOURNAL OF THE SOCIETY or ARTS.]

MOTORS FOR STREET RAILWAYS.

RESULTS OF EXPERIMENTS ON MECHANICAL MOTORS FOR TRAMWAYS MADE BY THE
JURY ON RAILWAY APPLIANCES AT THE ANTWERP EXHIBITION.

By Captain DOUGLAS GALTON, D.C.L., O.B., F.R.S.

An interesting feature of the Internat