Ouch ... trying too hard to prove things without checking the information, we do anything. Anachronisms, biographical shortcuts, partial and biased reading .... Of 19 lines for Georges Dumoulin, there are five factual errors! Both authors see the Allemanists everywhere ... in 1906! (While the Allemanist party is moribund since 1899). On poor Georges Yvetot, it is a real hate hard ... In the end, this item primarily as a political essay, written soon to influence the current debate of unionism. From the perspective of history, the process is manipulative and historian Michel Pigenet had also (too nicely) carried this book in the scientific journal "Social Movement" in 2006.