Articles (4) Textes imprimés (1) Colloques et conférences (1)
History (3) Nineteenth century (3) Population (3) Historia (3) Histoire (3) Dix-neuvième siècle (3) Histoire (3) XIXe siècle (3) histoire (3) Paris (2) Feeding and feeds (2) Language (2) Phonetics (2) Casualties (2) Breeding (2) Fiction (2) Statistics (2) City dwellers (2) Worms (2) Workshops (2) Water (2) Waste lands (2) Teaching (2) Public domain (2) Profit (2) Production (Economic theory) (2) Prairies (2) Pesticides (2) Nitrogen (2) Mechanization (2)