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Features

The New State Capitol at Hartford, Conn

Patent Office Printing

Science Record for 1874

The Value of a Kernel of Corn

The Vienna Exhibition and its Results

The Prime Movers and their Recent Progress

Obituary

Prosper Henry's Comet

Improved Tramway and Vehicle

The Wilson Process for Making Wrought Iron Direct from the Ore

By Edward M. Grant C. E.

A New Steam Omnibus and Street Car

Alumina, from the Clay to the Sapphire

Testing the Quality of Iron, Steel, and Other Metals, without Special Apparatus

By Professor Thurston

Improved Nut Lock

Improved Pruning Shears

Starr's Cotton Bale Fastener

The New Exploration of the Amazon River, by Professor Orton.—Over the Andes

Value of Patents, and How to Obtain Them

Recent American and Foreign Patents - January 17, 1874

Decisions of the Courts - January 17, 1874

United States Circuit Court---District of California.

Scientific and Practical Information - January 17, 1874

Communications Received - January 17, 1874

Answers to Correspondents - January 17, 1874

Canadian Patents - January 17, 1874

LIST OF PATENTS GRANTED IN CANADA DECEMBER 28 TO DECEMBER 29, 1873.

How to Obtain Patents and Caveats in Canada - January 17, 1874

Departments

  • Letters

    Correspondence - January 17, 1874

  • Recommended

    New Books and Publications - January 17, 1874

  • Departments

    Business and Personal - January 17, 1874

  • Index of Inventions - January 17, 1874

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January 17, 1874

Beyond XX and XY

Beyond XX and XY

Biology. Identity. Equality.