He was assigned to the expedition at the recommendation of the paleontologist Jean Albert Gaudry , and because Jules Ferry knew his ability and perfect knowledge of the Arabic language .
Thomas was 42 when he started his exploration of Tunisia .
Thomas was assigned to the expedition at the recommendation of the paleontologist Jean Albert Gaudry , and because Jules Ferry knew Thomas ' ability and perfect knowledge of the Arabic language .
Thomas was 42 when he started his exploration of Tunisia .