SA Supplements

October 1880

Volume 10, Issue 249supp

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Features

Decisions Relating to Patents

By the Acting Secretary of the Interior.

The India-Rubber and Gutta Percha Industries

Thomas Bolas

An Afghan Jampan or Sedan Chair

Piassava Fiber

The Mechanical Labor of One Man

Improved Gas-Burners

Mental Imagery

Glass Manufacture

Manufacture of Cotton Cords

Lightning Conductors

Richard Anderson

An Electro-Dynamic Paradox

M. Gerard-Lescuyer

On the Proper Form of Lightning Conductors

William Henry Preece

A New Improvement in Mineral Analysis

Solvay's Ammonia-Water Concentrator

Destructive Action of Woody Fiber upon Salicylic Acid

H. Kolbe

Solution of Chlorine in Water

M. Berthelot

Tin Crystals

Fast Shades on Wool

Fireproof Materials

Black Paper Pulp

M. Auguste Abadie

Method of Determining the Free Fatty Acids Present in Commercial Oils

M. Carpentin

Preparation of Glycerine from Soap-Boilers' Lyes

Luminous Paint

Helvetia Green

Bleaching Jute

The Present Condition and the Future Task of Modern Paleontology

Carl Vogt

Prophecy of the Weather

Isaac P. Noyes