th, who, in addition to fitting it to the
three North German Lloyd steamers named in the title--which are each
of 3,200 tons, having an 8-inch rudder-stock--have applied it to the
Hamburg and Australian liner Meissen of 5,200 tons and 10-inch rudder
stock, and to the steamer Carisbrook of 1,724 tons, owned in Leith. On
the latter vessel, which was the first fitted with it, the gear has
been working for over two years, giving, we are told, entire
satisfaction to the owners, who say the spring buffers undoubtedly
reduce the vibration when the rudder is struck by a sea, and the
arrangement of quadrant and tiller appears to give increase of power.
Of the installation of this gear on board the three North German Lloyd
vessels, the agents of that company say: "It has been working to our
entire satisfaction. This system, on the whole, proves to have
answered its purpose." Considering the advantages claimed for the
gear, this is satisfactory testimony. We are indebted to The London
Engineer for the cuts and description.

* * * * *

COMBINED STEAM PUMPING AND MOTIVE POWER ENGINE.

We give herewith an illustration of a compact engine, designed by
Messrs. Merryweather & Sons, of London, particularly for mining work,
and already supplied to the Burma ruby mines, the Salamanca tin mines,
and several mining companies in Brazil and other parts of South
America. It is an arrangement of the Valiant steam pumping engine with
a flywheel arranged to take a belt, and is so constructed that the
pump can be readily thrown out of gear and the engine used to drive
light machinery. The smaller size weighs only 7 cwt., including
boiler, engine and pump complete, and can be run on its own wheels, or
these can be detached and the machine carried by eight or ten men on
shoulder poles passed through rings fitted on top of the boiler. Thus
it can be easily transported up country, and has for this reason been
found most useful for prospecting. For alluvial mining it will throw a
powerful jet at 100 lb. to 120 lb. pressure, or by means of a belt
will drive an experimental quartz crusher or stamp mill. The power
developed is six horses, and the boiler will burn wood or other
inferior fuel when coal is not obtainable. The pump will deliver 100
gallons per minute, on a short length of hose or piping, and will
force water through three or four miles of piping on the level, or, on
a short length, 35 gallons per minut