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Military Steam Electric Machine and Light

The Royal Arsenal, Woolwich

Mr. James Nasmyth, C.E., on Freehand Drawing

Chrome Leather

The Polyphemus

Direct Positive Transparencies

Trial of a Compressed Air Locomotive

Roman Villa in the Isle of Wight

Sir Josiah Mason's Science College, Birmingham

Methods of obtaining Positives in the Camera

By Fr. Jahns

Roof Covering

Apparatus for the Detection of Fire-Damp in Mines

Sir William Thomson's Siphon Recorder

St. Mark's Library, Venice

The Phenomena of Fluorescence

By Edward Rattenbury Hodges

An Economical Process for Treating Mineral and other Substances Containing Small Quantities of Phosphate of Lime

By C. H. Alldred


Detection of Inks

By W. Thomson

On the Liquefaction of Ozone, and on its Color in the Gaseous State

By MM. P. Hautefeuille and J. Chappuis

Fast Red on Cotton with Artificial Alizarine

By M. Moyret

A Method of Determining the Topography of Chemical Processes in the Animal System

By W. Kochs

Freezing Mixtures Formed by an Acid and a Hydrated Salt

By Berthelot

On Ostrich Feather Dyeing

By Paul Alex

A New Process for Producing Malleable Nickel of Different Degrees of Hardness

By J. Garnier

Igneous Rocks

Certain Properties of Flames

By M. Meyreneuf

Alcohol in Animal Tissues

By J. Bechamp

Chemical Cause of the Poisonous Nature of Arsenic

Peculiar Insects

Salmon Disease

Albert J. Myer

Dwarfs and Giants

Woman as a Sanitary Reformer

A Great Medical Discovery

By Investigatus Discoverandum, M.D., C—A. 10 A.C

Copper a Preservative against Cholera and Typhoid Fever

Headache as a Symptom of Uræmia

On some Points in the Management of Asthenopic Symptoms in Emmetropic and Ametropic Eyes

By O. D. Pomeroy


A New Vine

Castration for Hysteria

The Termination of Nerves in Muscle



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