First published during World War I. The book begins: "It is a curious circumstance that an invention, which is hailed as being one of the greatest achievements ever recorded in the march of civilisation, should be devoted essentially to the maiming of humanity and the destruction of property. In no other trend of human endeavour is this factor so potently demonstrated as in connection with Man's Conquest of the Air." This is a very useful book for time travellers, teaching you how to throw bombs from a plane, tricks to baffle an opposing airman, and mining the air.
