BARROIS, CHARLES (1851— ), French geologist, was born at Lille, on April 21, 1851, and studied geology there under Prof. Jules Gosselet. To this master he dedicated his first com prehensive work, Recherches sur le terrain cretace superieur de l'Angleterre et de l'Irlande, published in the Memoires de la society geologique du Nord in 1876. In this essay the palaeon tological zones in the Chalk and Upper Greensand of Britain were for the first time marked out in full detail. In the year 1876 Dr. Barrois was appointed a collaborateur to the French Geo logical Survey, and in 1877 professor of geology in the University of Lille.