
The SciencesMarch 15, 1919
On the Lubricating and other Properties of Thin Oily Films

On the Lubricating and other Properties of Thin Oily Films

Fluid Motions
Some Problems Awaiting Solution

Shadows

On the Weight of Hydrogen Desiccated by Liquid Air

The Scientific Work of Tyndall
Professor of Natural Philosophy, R.I.

Experiments upon Surface Films

Foam

Photography by the Light of the Electric Spark

Iridescent Crystals