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South African Baboons

Hedgehog and Viper

New Explorations of the Ruins at Palenque, Mexico


The Homing Instinct in Pigeons

Lexington oil Belt-Santa Clara County, California

The Sutro Tunnel

By Adolph Sutro

Shafting, Couplings, and Hangers.*

Machinery from an Insurance Point of View

By A. J. Waters

How to Prevent the Rapid Spread of Fire

Principles of Horseshoeing

Shingle Manufacture

On Gelatino-Bromide of Silver

By D. Van Monckhoven

Wood Stains

Bracewell's Improved Bleaching Kier

Turkey-Red Oil

By G. Stein

Compound Nature of Phosphorus

Letter from Mr. N. Lockyer to M. Dumas.

Heliotypic Printing Plates

Spongy Silver

The Eucalyptus and the Pine Considered in Relation to Their Sanitary Proper- Ties. *

By C. T. Kingzett

A New Quantitative Analytical Method of Extensive Applicability

Curious Case of Loss of Personal Identity

Determining Sulphur

By Albert Colson

Fast Scarlet Without Cochineal

Carre's Di-Electric Machine


The Most Powerful Telescope in Existence

By E. Neison

Neuralgia Cured by Nerve-Stretching

Cumberland, Md


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