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.