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South African Baboons

New Explorations of the Ruins at Palenque, Mexico

Hedgehog and Viper

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

Principles of Horseshoeing

How to Prevent the Rapid Spread of Fire

Shingle Manufacture

On Gelatino-Bromide of Silver

By D. Van Monckhoven

Bracewell's Improved Bleaching Kier

Wood Stains

Spongy Silver

Heliotypic Printing Plates

Fast Scarlet Without Cochineal

Determining Sulphur

By Albert Colson

Curious Case of Loss of Personal Identity

Compound Nature of Phosphorus

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

A New Quantitative Analytical Method of Extensive Applicability

Turkey-Red Oil

By G. Stein

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

By C. T. Kingzett

Neuralgia Cured by Nerve-Stretching

The Most Powerful Telescope in Existence

By E. Neison


Carre's Di-Electric Machine

Cumberland, Md


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    December 06, 1879

    20% Sitewide for President's Day