Alexander Bogdanov was a co-founder, with Lenin, of the Bolshevik faction of the Russian Social Democratic Party in 1904. After 1905, Bogdanov criticized Lenin's adaption of Bolshevism to the requirements of Duma politics and his authoritarian style of leadership. Expelled from the Bolshevik fraction in 1909, he at first formed the Forward faction of the RSDRP and then turned increasingly to scholarly and publicistic work. In 1910 he published Faith and Science, replying to Lenin's Materialism and Empiriocritcism, which had been written to discredit him. His ideas on the sociology of culture...