underneath, as in that rifle. When the magazine is raised to its higher
position, the cartridges pass successively into the shoe by the action
of gravity alone, and are thus pressed home into the chamber by the
closing of the bolt.

[Illustration: FIG. 11.]

A number of the Lee-Burton and improved Lee rifles are now being
manufactured for issue to the troops, in order to undergo experimental
trials on an extended scale.

Several other magazine rifles have the box central magazine, but placed
in different positions as regards the shoe and the axis of the bore. In
the original pattern of the Jarman (Sweden and Norway), the magazine is
affixed to the upper part of the shoe, inclined at a considerable angle
to the right hand (see vertical cross section, Fig. 11). Here the
operation of gravity obviates the necessity of a magazine spring, but
the magazine was found to be very much in the way and liable to be
injured. It has therefore been replaced by a magazine underneath the
barrel, as in the Kropatschek and other rifles.--_Engineering_.

(_To be continued_.)

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PRESERVATIVE LIQUID.