Great Steamers.--Comparative details of the Servia, the City of Rome,
the Alaska, and the Great Eastern.

Improved Road Locomotive.--2 figures.--Side and end views

American Milling Methods. By ALBERT HOPPIN.--Ten years' progress.--Low
milling.--Half high milling.--High milling.--Important paper read
before the Pennsylvania State Millers' Association.

Machine for Dotting Tulles and other Light Fabrics.--3 figures.

II. TECHNOLOGY AND CHEMISTRY.--The Reproduction and Multiplication of
Negatives. By ERNEST EDWARDS.

A New Method of Making Gelatine Emulsion. By W. K. BURTON.

The Pottery and Porcelain Industries of Japan.

Crystallization Table.

The Principles of Hop Analysis. By Dr. G. O. CECH.

Water Gas.--A description of apparatus for producing cheap gas, and
some notes on the economical effects of using such gas with gas
motors, etc.--By J. EMERSON DOWSON.

On the Fluid Density of Certain Metals. By Professors CHANDLER ROBERTS
and T. WRIGLESON.