v. 1. Population and agriculture with specia reference to agricultural overpopulation.--v. 2. The land tenure systems in Europe.--v. 3. The capital and income of farms as they appear from the farm accounts for the years 1927-28 to 1934-35.--v. 4. Land reclamation and improvement in Europe.--v. 5. Conditions and improvement of crop production, stock-raising and rural industries.--v. 6. Government action concerned with agricultural markets and production.