Exhibit of the Hartford Steam-Boiler and Insurance Company

The Manufacture of Sewing-Machine Needles at the Centennial

Exhibition Notes

Frictional geared hoisting engine

Power Presses at the Centennial

Locomotives at the Exhibition

Notes Referring to the Table

A Curious Experiment

The Railway Tunnel under the English Channel

Ice Skating in Summer—The Glaciarium, London

Loan Collection of Scientific Instruments

Chemistry, Mineralogy, Etc

The Industrial uses of Aluminum

Roscoelite, A Vanadium Mica

Dyeing Recipes

From Riemann

Process for Photochromic Prints

Volatility of Barium, Strontium, and Calcium

Men of Science from Abroad

The World's Alphabets

Railway Brakes

Clamond'S Thermo-Electric Battery

Guattari's Pneumatic Telegraph

Taking up Water without Stopping

A New Double-Reflecting Telemeter

Shooting Stars

How Plants Feed

The Satellite of Venus

Lightning Conductors

Functions of the Cerebrum

Guarana

The Ocean's Bottom

Society of antiquaries, London

Fireproof Towns