SA Supplements Vol 30 Issue 761supp

SA Supplements

Volume 30, Issue 761supp

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Features

Heliostat for the Smithsonian Institution, Washington

Howard Grubb

Some Engineering Works

E. L. Corthell

The Large Sail Vessels of France

A Water Velocipede

An All-Round Titan

Sibley College Lectures.—1889-90

By the Cornell University Non-Resident Lecturers in Mechanical Engineering

Robert W. Hunt

The Great Salt Deposits of Khewra, in the Punjab

E. Rodger

Sulphite Pulp in America

Heligoland

Improved Flax Scutching Machine

A “Home Made” Electric Motor

Electric Torch at the Paris Opera House

An Experimental Proof of Ohm's Law, Preceded by a Short Account of the Discovery and Subsequent Verification of the Law

Alfred M. Mayer

The use of Alloys in Art Metal Work

W. C. Roberts-Austen

Wiborgh's Method for the Analysis of Sulphur in Iron and Steel

J. B. Cohen

Building Plans and Specifications

Patents

Useful Engineering Books

A Cheap Funnel-Jacket

John A. Forret