English

Mutual aid; a factor of evolution

"Printed in England." · Introduction.-Mutual aid among animals ["Nineteenth century", Sept. & Nov., 1890]-Mutual aid among savages [Ninteenth century", Apr. 1891]-Mutual aid among the barbarians [Nineteenth century", Jan. 1892]-Mutual aid in the mediaeval city ["Nineteenth century", Aug. & Sept. 1894]-Mutual aid amongst ourselves [Nineteenth", Jan. & June 1896 under title, "Mutual aid amongst modern men"]-Appendix

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