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The Forbin

Angle Iron Beveling Machine

The Railways of India

To adjust and readjust Compasses at Sea

Pick's System of Manufacturing Salt in Vacuo

Lighting by Compressed Gas

Some Practical Business Applications of the Microscope

By Frederick Gaertner

Increase of Locomotive Traction by means of Electricity

Miss Fawcett

A very Simple Rheostat

Bertrand's Automatons and Puppets

Attempt to Rob a Diamond Car

Ohm's Law and its Practical Application to Electro-Therapeutics

By Henry N. Winton

The Japanese Headdress and Pillow

La Couveuse, for Preserving the Life of Feeble and Prematurely Born Infants

Some Improvements in Pharmacy

By A. Ball

Protective Mimicry in a Fish

The Cultivation of the Chestnut

Cane Culture and Sugar Manufacture in Cuba

The Quantitative Estimation of Coloring Matters by means of their Absorption Spectra

By T. L. Patterson

Useful Engineering Books

Building Plans and Specifications


  • Departments

    Patents!- July 26, 1890

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