----- 攻击的艺术
Some years back, the author's attention was drawn by certain papers, (written now nearly forty years ago), by the late General pitt-rivers (then Colonel lane-fox) to the apparent development of certain weapon types from others. Or from natural forms and it seemed to him worth while to gather further material, and to try how far it would be possible to draw up a tabular pedigree of all types from the most primitive down to gunpowder and developed explosives.
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