28 FEBRUARY 1925, page 9
The Rotor Ship
H AS a. new and effective method of applying wind to the propulsion of ships at last been discovered ? For hundreds of years there has been no essential change in the design of......
The Evi L Deeds Of Bats
T HE rat is not a likeable fellow. Here in Great Britain he wastes at least £50,000,000 a year by eating foodstuffs, damaging merchandise and buildings, killing poultry, and......