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Features

Improved Steam Cotton Press

Volcanic Emanations

The Sun's Distance

Hellebore

Recent Patented Improvements

Evaporative Power of Brass, Copper, and Iron Boiler Tubes

New Double Stars

The Temperature of the Ocean

Improved Apparatus for Tanning

Butler's Record Ink

Geology of Crystals

French and English Railways

Gas lighting—Article II

Steam Fire Engine at Chicago

Science in Sport

Lamson's Combination Tool

Skagg's Method of Tightening Tires

Mechanics

Performances of Mill Engines

Departments

  • Letters

    Editorial Correspondence - March 6, 1858

  • Correspondents - March 6, 1858

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March 06, 1858

Beyond XX and XY

Biology. Identity. Equality.