Scientific American Magazine Vol 52 Issue 17

Scientific American Magazine

Volume 52, Issue 17

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Features

Casting a Statue of Heroic Size

Herat

Do We Work Too Much?

Changes in the Patent Office

Double Bolt Sash Lock

Improved Mine Railway

Adjustable Window Bead Fastener

Improved Sled

Double-Acting Water Wheel

Cold Iron Punch

Rowing Apparatus

An Electrical Standard for Measuring Light

Monumental Nests

C. F. Holder

Dr. Ochorowicz's Loud-Speaking Telephone

Pruning Ornamental Trees

Engineering Inventions - April 25, 1885

Agricultural Inventions - April 25, 1885

Miscellaneous Inventions - April 25, 1885

Departments

Business and Personal - April 25, 1885

Notes and Queries - April 25, 1885

Index of Inventions - April 25, 1885