Draught of chimneys, [282]
Drowning, how it can often be prevented, [141]
Earth, globular form of, [61]
Earth, roundness of, shown, [113]
Earth, attraction toward centre of, [80]
Earth, thickness of its air-covering, [150]
Earth, shape of, influenced by centrifugal force, [218]
Earth, rotation of, affecting winds, [284]
Elasticity, [39]
Elasticity, definition of, [42]