dder propeller,
and hand fire-engines Then we see a number of locomotives and tramway
engines, rail and street cars, winding, mining, crane and portable
engines, and a full set of vacuum-pans for sugar, with engines,
centrifugal filters and hydraulic presses. A glance at Guibal's great
mine-ventilator fan, fifty feet in diameter and with ten wooden vanes,
and we may quit the section of Belgium, which is the next largest after
England of all the foreign departments here.

The exhibition of Denmark is principally agricultural machinery, its
iron ploughs being copies of the English, and its reapers of the
American, while the dairy machines and apparatus are its own, and very
excellent.

The embroidering-machine of Hurtu & Hautin is shown working in the Swiss
section, and is a great success. The web or cloth to be embroidered is
stretched between horizontal rollers in a vertical frame which hangs
suspended in the machine from the shorter end of a lever above. On each
side of this floating frame is a track on which a carriage alternately
approaches and recedes. Each carriage carries as many nippers in a row
as equals the number of needles, which in this case is two hundred and
twelve. The needles have an eye in the middle and are pointed at each
end. The carriage advances, the nippers holding the threaded needles,
and pushes them through the cloth: the nippers on the other side are
waiting to receive them and shut upon them, those which have just thrust
them into the cloth opening automatically; the second carriage retreats
and draws the silk through the cloth with the requisite tightness, and
then comes forward, thrusting the other end of the needles through the
cloth to be grasped by the nippers on the first carriage, and so on. The
frame holding the cloth is moved by an arrangement of levers under the
control of the operator, who conducts a tracer point on the long end of
the lever over the design, which is suspended before him. The frame
moves in obedience to the action of the tracer, but in a minified
degree, and each needle repeats on a scale of one-twentieth the design
over which the tracer is moved step by step between each stitch. Thus
two hundred and twelve embroideries according to a prescribed pattern
are made by each needle; and, in fact, though it was not stated, to
avoid complicating the description, a second row of a similar number of
needles is carried by the same carriages and operates upon a second web
s