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.


II. TECHNOLOGY.--Improved Plaiting Machine.--With engraving.

Self-acting Shuttle Guard.--1 figure.

Ruler and Triangle for Hatching.

The Distillation of Sea Water.--1 figure.

Aids to Correct Exposure on Photographic Plates.--An
interesting paper by W. GOODMAN.