Reversible Ingrain or Pro-Brussels Carpet.--An imitation of
Brussels carpet on the Ingrain principle.--Full description of the
process of making.--3 illustrations.

The Manufacture and Use of Plaster of Paris.--An excellent
treatment of a subject hitherto little written about.--Full
particulars of the manufacturing process.

* * * * *




IMPROVED OVERHEAD STEAM TRAVELING CRANE.


We show in Fig. 1 a general view, and in Figs. 2 and 3 a side
elevation and plan of an overhead steam traveling crane, which has
been constructed by Mr. Thomas Smith, of Rodley, near Leeds, for use
in a steel works, to lift, lower, and travel with loads up to 15 tons.
For our engravings and description we are indebted to _Industries._
The crane is designed for hoisting and lowering while traveling
transversely or longitudinally, and all the movements are readily
controlled from the cage, which is placed at one end of and underneath
the transverse beams, and from which the load can be readily seen. All
the gear wheels are of steel and have double helical teeth; the shafts
are also of steel, and the principal bearings are adjustable and
bushed with hard gun metal. This crane has a separate pair of engines
for each motion, which are supplied with steam by the multitubular
boiler placed in the cage as shown. The hoisting motions consist of