Sir Henry Howorth and “Geology in Nubibus”
Graphic Methods in an Educational Course on Mechanics
Curvature of Wheel Spokes in Photographs
An Educational Gap
Some Results of the Norwegian Herring Investigations
Auror 1 Display
Stagnant Glaciers
Colliery Warnings
Colour-vision
Temperature of the Upper Atmosphere
Concentric Joints in Ice
Retinal Shadows?
Wind Provinces
Atomic Volume Curves of the Elements
The Cause of Streaks upon Lath and Plaster Walls
Weather Forecasting
Variable Stars
Weather Forecasts in England
The Origin of Flint
