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The 42D Street Sewage Tunnel, New York City

$80,000 Reward for a Cure for Cholera

Sun Spots Studied by Solar Photography

Lessons in Mechanical Drawing

Cerebral Thermometry

Notes of Decisions of the Courts

The Glandular Theory of Disease

Improved Tile-Making Machine

Harrison's New Portable Flouring Mill

M. Trouve's New Moist Battery


Practical Mechanism

By Joshua Rose

Improved Boring Machine

Improved Label Holder

A Curious Result of Denudation

The New French Exposition Palace

Raising Obelisks

New Arrangement of the Air Reservoirs in Pumps

How to Adjust Engine Guide Bars

Recent American and Foreign Patents

New Miscellaneous Inventions

New Mechanical and Engineering Inventions

New Household Inventions

New Agricultural Inventions

Wants and Business Inquiries


  • Departments

    New Books and Publications

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • Patents

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November 24, 1877

20% Sitewide for President's Day