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The Pennsylvania Railroad Stock Yards and Abattoir

Continuous Girders

Design for a Truss Bridge

By Jno. H. Snyder

“Potential” Energy

By S. Tolver Preston

New Ventilating Apparatus

Natural Gas at Sacramento

Friction of Pitch

Steam Excavating Machine

New Vertical Engine and Boiler

The “ Aita “ Leveling Apparatus

By Henry Ecroyd

Straw and Coal Burning Engine

French Torpedo Experiments

Improved Steam Pump

The Clock Maker's Hand Turning Tool

The Elasticity and Density of Vapors

Experiments on the Maximum Elasticity and Density of Vapors. *

By Mr. Alex. Morton

A Police Shelter

Irisation of Glass

By E. Fremy and Clemandot

Improved Foot Bellows

Chemistry of the Barks of the Oak, Willow, and Elm

By E. Johansen

How to Draw a Straight Line.*

Spongy Iron and Putrescent Organic Matter. *

By Gustav Bischof


By E. V. Gorup-Besanez.

New Derivative of Albuminoid Substances

By P. Schutzenberger


By O. Silvestri

Testing Aqueous Liquids for Blood

By V. Schwartz

The Cell-Doctrine in the Light of Recent Investigations

By C. Heitzmann

Origin of Bacteria

The Genesis of Nerves

Rhinoplasty by the Taliacotian Plan

Treatment of Hydrophobia by Oxygen

Intestinal Obstruction Treated by Electricity

Disease Spread by Tailors

Cure of Intussusception by Soda Water

Cure for Rattlesnake Bite

By J. J. Knott

Cure by the use of Spectacles

A New Method of Curing Popliteal Aneurisms

Can we Transmit Power in Large Amount By Electricity? *

By N. S. Keith

New Reflecting Magic Lantern

By J. B. Knight

Scientific American Chess Record

Scientific Queen Problems

Solutions to Problems

The States vs. Canada

Blackburne vs. Steinitz

Chess Journal ' B “ Tournament of '76

Historical Chessmen

Mrs. J. W. Gilbert

Our Solvers' Tournay


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    September 01, 1877

    20% Sitewide for President's Day