'HIS MASTERPIECE,’ which in the original French bears the title of L’Oeuvre, is a strikingly accurate story of artistic life in Paris during the latter years of the Second Empire. Amusing at times, extremely pathetic and even painful at others, it not only contributes a necessary element to the Rougon Macquart series of novels a seriesillustrative of all phases of life in France within certain dates — but it also represents a particular period of M. Zola’s own career and work.