SA Supplements Vol 63 Issue 1642supp

SA Supplements

Volume 63, Issue 1642supp

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Features

Electrical Machinery, Apparatus, and Supplies

150-Ton Electric Derrick Crane

The English Correspondent of Scientific American

Engobes or Slips

Recent Progress in Producer Gas Power Installations

Godfrey M. S. Tait

The Del Proposto System of Electrical Transmission Gear for the Propulsion of Ships by Irreversible Engines

Storage Batteries and Battery Plates

George P. Hutchins

Novel House-Moving Operations

Edward H. Crussell

Some Recent Developments in Plant Growing

G. Clarke Nuttall

Our most Destructive Rodent

How Soft French Cheeses are Made

Jacques Boyer

Artificial Fertilizers: Their Nature and Function.—III

The Nitrogenous Manures

A. D. Hall

Rennet

How to Build a 5-Horse-Power Stationary Gas Engine

E. F. Lake

The Utility of Inventions

John E. Brady

Pear-Shaped Stars

Alexander W. Roberts

Electrical Notes

Science Notes

Trade Notes and Formulæ