Chapter I: ENGINEERING AND MECHANICS.--The New Spanish Artillery.--2

engravings.

Qualitative Tests for Steel Rails.--By L. TETMAJER.

A New Form of Small Bessemer Plant.--By A. TRAPPEN.

Triple Compound Engines.--A paper read by A.E. SEATON
before the Institution of Naval Architects.

Early History of the Steam Jack.

Bridge over the River Adige, at Verona.--13 figures.

Pumping Machinery.--Mine pumps.--Direct acting steam pumps.
By E.D. LEAVITT.

Improved Gun Pressure Gauge.--2 figures.

Measuring the Thickness of Boiler Plates.

On an Express Engine.