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Features

The Earth as an Electrical Conductor

Physics without Apparatus

Electric Lights on Spires.–A Failure in Electric Lighting

Contributions to Molecular Physics in High Vacua

Enlarged Collodion Transfers

The Livadia

Some Experiments with Asphalt for Photographic Purposes

By J. O. Morch

Photo-Plates—Woodbury-Type—The Old and the New

A New Developer

By Captain W. De W. Abney

Allemand Brick Machine

Improved Microscope

By Eusbius J. Molera and John C. Cebrian

University College Barge and Boat House, Oxford

House Drainage

Apparatus for Clearing Sewage

Silver Plate Exhibition, Amsterdam

The Giant of the Catskills

Researches on Beetroot

By A. Baudrimont

Explosive Mixtures of Coal Gas and Air

By W. Foster

The Manufacture of Nitro-Glycerine

Artificial Production of Felspars Containing Barium, Strontium, and Lead

By F. Fouqu*amp*eacute; and A. M. Levy

Detection of Cotton-Seed Oil in Olive-Oil

By Benjamin Nickels

Domestic Remedy for Felons

By T. C. Brannon

Nitro-Glycerine

The Contagion of Consumption

By James T. Whittaker

Report on Diseases of Domestic Animals

By James Law

Statistics of Two Hundred and Fifty Cases of Cancer of the Breast

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August 28, 1880

Think Outside the Gift Box