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The Principal Serpents of France

On Certain Vestigial Characters in Man

Is Animal Life Possible in the Absence of Bacteria?

The Grottoes of Jonas

Note on the Origin of Malachite

By Edgar Hall

The Intellectual Capacity of Woman

Tetanus Antitoxin

On the Origin and History of some Disease Names

By William Sykes

The Caricature Pantograph

Manila Rope

Compressed Air for City and Suburban Traction

By Herman Haupt

The Railways of the World

Air Pumps for the Steamship Kaiser Wilhelm Der Grosse

Abbott's Boat Raising and Lowering Davit

The Repair of Single Tube Bicycle Tires

The Faun Folding Bicycle

The First Hydraulic Crane

Miscellaneous Notes

Electrical Notes

Engineering Notes


Selected Formulæ


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