llysubstantialtopic, namely,howacertaintypeofworkerrespondedtoindustrializationinthe late nineteenth and earlytwentiethcenturies. Merrheim is an interesting figure,too, becauseofhispositioninthelabormovement, foritrepresents a unique focalpoint forthestudy oflaborhistory. Merrheim enteredthe Frenchlabormovement in the 1890s and remainedactiveinituntil 1923. During that periodhewas, successively, alocalunion leader,co-secretary xii of a nationallaborfederation, and animportant figurewithinthe CGT. Never thesecretary-generaloftheCGT, hewasneverthelesstheconfident of thesecretary-generalfrom 1909, L6on Jouhaux.