The Pennsylvania Railroad Stock Yards and Abattoir

Continuous Girders

Design for a Truss Bridge

Friction of Pitch

New Ventilating Apparatus

Natural Gas at Sacramento

“Potential” Energy

Straw and Coal Burning Engine

New Vertical Engine and Boiler

The “ Aita “ Leveling Apparatus

Steam Excavating Machine

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. *

A Police Shelter

Irisation of Glass

Improved Foot Bellows

How to Draw a Straight Line.*

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

Testing Aqueous Liquids for Blood

Hydrocarbons

Ostruthin

Spongy Iron and Putrescent Organic Matter. *

New Derivative of Albuminoid Substances

Origin of Bacteria

The Cell-Doctrine in the Light of Recent Investigations

Rhinoplasty by the Taliacotian Plan

The Genesis of Nerves

A New Method of Curing Popliteal Aneurisms

Cure by the use of Spectacles

Intestinal Obstruction Treated by Electricity

Cure for Rattlesnake Bite

Cure of Intussusception by Soda Water

Treatment of Hydrophobia by Oxygen

Disease Spread by Tailors

New Reflecting Magic Lantern

Can we Transmit Power in Large Amount By Electricity? *

Scientific American Chess Record

Blackburne vs. Steinitz

Historical Chessmen

Scientific Queen Problems

The States vs. Canada

Mrs. J. W. Gilbert

Solutions to Problems

Chess Journal ' B “ Tournament of '76

Our Solvers' Tournay