http://www.nyupress.org/books/Generations_of_Youth-products_id-381.html
http://books.google.com/books?id=dyXC3oyvmqcC&printsec=frontcover&dq=joe+austin+generations&source=bl&ots=vICL0yQQjP&sig=MFt_J4DZdDz9H6eouq5ZyxvMZ1Y&hl=en&ei=39zHTN_YFdHtOaOC8e8I&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBIQ6AEwAA#v=onepage&q&f=false

http://en.wikipedia.org/wiki/Peter_Kropotkin
http://en.wikipedia.org/wiki/Mutual_Aid:_A_Factor_of_Evolution

Written partly in response to Social Darwinism and in particular to Thomas H. Huxley's Nineteenth Century essay, "The Struggle for Existence", Kropotkin's book drew on his experiences in scientific expeditions in Siberia to illustrate the phenomenon of cooperation. After examining the evidence of cooperation in nonhuman animals, pre-feudal societies, in medieval cities, and in modern times, he concludes that cooperation and mutual aid are the most important factors in the evolution of the species and the ability to survive.
Daniel P. Todes, in his account of Russian naturalism in the 19th century, concludes that Kropotkin’s work "cannot be dismissed as the idiosyncratic product of an anarchist dabbling in biology" and that his views "were but one expression of a broad current in Russian evolutionary thought that pre-dated, indeed encouraged, his work on the subject and was
no means confined to leftist thinkers." ^{[1]
http://www.gutenberg.org/cache/epub/4341/pg4341.html}