Estrade's High Speed Locomotive and Car

The New British War Steamer Orlando

Express Atlantic Steamers

An Easy Method of Adjusting a Field Level

Harvesting Machinery

Screw Forging Machines

Novel Rotary Engine at the Liverpool International Exhibition

An Endless Railway

The New Croton Aqueduct

Charcoal and Coke as Blast Furnace Fuels

Bertrand's Refractometer

Trouve's Siren

Making Steam by Friction

An Improved Form of Temperature Regulator

Chemistry of the Alkaloids

Radii of Curvature Geometrically Determined

No. Iv.—The Cycloid

The Upward Primary Battery

The Eclipse of Algol, with the Latest Determinations of its Distance and Dimensions

The Next Louisville Exposition

The Irrigating Canals of Northern Colorado

Niagara River, Gorge and Falls

Leasing of an Unsanitary House

Vertebrate Columns of Different Peoples