A former friend of their father, -the illustrious chemist, Michel Froment, -Bertheroy had now, in his turn, become one of the loftiest glories of France, one to whom chemistry owed much of the extraordinary progress that has made it the mother-science, by which the very face of the earth is being changed. A member of the Institute, laden with offices and honours, he had retained much affection for Pierre, and occasionally visited him in this wise before dinner, by way of relaxation, he would sa