May be a ship owner is willing to submit the innovations to an
attempt, so much the more as there is running no great risk by doing
so; for in case the ships should not answer the expectations, both
separable as well as joinable, they can be used like single ships,
without any further alteration being made, except as to the loading
gaps.

The above invention is covered by United States patent No. 435,107.
Any further information may be had by addressing M. v. Szabel, ix
Bezirk, Beethovengasse 10, Wien, Austria.

* * * * *




WELDON'S RANGE FINDER.


Colonel Weldon has recently considerably modified and improved his
ingenious range finder, and we illustrate herewith from _Engineering_
the form in which it is now manufactured. It consists of a metal box,
the lid of which is shown open in the engraving, and on this lid are
fitted three prisms which are the essential constituents of the
instrument. When the lid is closed, these, with the compass and level,
also attached to the lid, lie inside the metal box, and are thus
thoroughly protected. The upper prism marked 1 is a right-angled one
and is mounted with the right angle outward; looking into the
left-hand corner of this prism one will see in it, by double