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Scientific American Magazine Vol 97 Issue 4

Scientific American Magazine

Volume 97, Issue 4

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Features

Latest Results with Marine Turbines

Opening of the New Haven Railroad Electric Service

Is a Revision of Gatun Dam Necessary?

Battleship “Georgia” Disaster

Building Railway Coaches with Side Doors

The Heating of Copper Wires by Electric Currents

The First Races and Records on the New Weybridge Track

By the London Correspondent of the Scientific American

Block Signals in the Cab of the Locomotive

Death of Sir William Perkin

Photomicrographs without a Microscope

C. H. Claudy

Orthopedic Appliances

Jacques Boyer

Some Strange Sources of Water Power on the Coast of Dalmatia

Arthur L. Williston

Building Block for Concrete Construction

Attachment for Sewing Machines

An Improvement in Hammers

Patent Department

Answer to the Plug Puzzle

Departments

The Heavens in August

Correspondence - July 27, 1907

Recently Patented Inventions - July 27, 1907

Index of Inventions - July 27, 1907

Patents - July 27, 1907