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Aborigines of the West Indies

By Frederick A. Ober

Li Hung Chang

Insect Secretions

By E. A. Butler

Influence of Nutriment upon the Length of the Roots of Plants

Pterocarya Caucasica

The Sydney Coalfield of Cape Breton, Nova Scotia

By Hugh Fletcher


The Polar Snows

By Percival Lowell

Kilauea Volcano seen Anew

By Sereno E. Bishop

Improved Hydraulic Capstans

By Arthur Rigg

The New Dam for the Chemnitz Water Works

Engineering Facts

Answers to Questions asked Candidates for Mine Foremen's Certificates

A Double Refracting Finder

Drawing Office Rules

By A. W. Robinson

The Work of Sculptors

Concrete Construction-Its Practical Application

By Ernest L. Ransome

A Cheap Planimeter

Determination of Combustible Gases

Experiments in the Liquefaction of Hydrogen

Apparatus for Weighing out Liquids


Sympathetic Explosions

By C. A. Mitchell


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