classes of green or moist seed. The plant, of which we give
illustrations opposite, is constructed to crush about four tons of
seed per day of eleven hours, and the manual labor has been so reduced
to a minimum that it is intended to be worked by one man, who moulds
and puts the twenty-four cakes into the presses, and while they are
under pressure is engaged paring the cakes that have been previously
pressed. In crushing castor-oil seed, a decorticating machine or
separator can be combined with the mill, but in such a case the engine
and boiler would require to be made larger.--_The Engineer_.

[Illustration: AN ENGLISH ADAPTATION OF THE AMERICAN OIL MILL.]

* * * * *




APPARATUS FOR SEPARATING SUBSTANCES CONTAINED IN THE WASTE WATERS OF
PAPER MILLS, ETC.


For extracting such useful materials as are contained in the waste
waters of paper mills, cloth manufactories, etc., and, at the same
time, for purifying such waters, Mr. Schuricht, of Siebenlehn, employs
a sort of filter like that shown in the annexed Figs. 1 and 2, and
underneath which he effects a vacuum.

[Illustration: SCHURICHTS FILTERING APPARATUS. Fig. 1.]

The apparatus, A, is divided into two compartments, which are