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The Accelograph

On the use of an Apparatus Called the Accelograph for Measuring the Pressures Developed by Gun* Powder Gases, and for Studying the Laws of the Recoil Motion of Firearms

Governors for Marine Engines

By W. T. Clark and W. H. Ashwell

Raising Submerged Vessels

Siphons for Sewers

Six-Coupled Locomotive

Burning or Mending Heavy Castings

By Thomas D. West

Apparatus for Preventing Waste in Twisting and Doubling Yarns and Threads

By J. Clough

Iron Railway Sleepers

How to Make a Trawl

Emery Machines for Sharpening Tools

The Discovery of Underground Springs

From the French of Daniel Ramee

The Microphone, 1880

The American Franklin Search Expedition

Captain Carver's Early Travels in America

Three Years' Travel-1763-1776—Through the Interior Parts of North America for More than 5,000 Miles by Capt. Jonathan Carver, Glasgow, 1805

Enlarging by the Gelatine Process

By H. J. Palmer

Recent Progress in Photography

On the Preparation of Gelatine Emulsion

Gelatine Bromide Tissue

Goupil's Photogravure

Bromine in the Fatty Acid Series

By Carl Hell and Fr. Urech

The Mineral Constituents of Yeast

The Action of Light

Preparing Gelatine Plates in the Studio

Cosmos Fiber or Vegetable Wool

Ostrich Feather Dyeing

By Paul Alex

Feather Dyeing

Intense Blue

Estimation of Nitrogen

Determining Phosphoric Acid

By B. Peitzsch, W. Rohn and P. Wagner

Luke Blackburn

Aleutian Mummies

“Dry Washing” on the Gila

Turquoise Mines of New Mexico

Recent Progress in Agricultural Science

Cultivation of the Fig in Turkey

The Traffic in Dried Fruits

The Surgical Uses of Wire Cloth

By J. S. Wight

Pasteur's Discovery of the “Vaccine” of Fowl Cholera

Something about Mosses


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    February 26, 1881

    20% Sitewide for President's Day