Development (1) History (1) Cartography (1) Altitudes (1) Charts, diagrams, etc (1) Year (1) Time (1) Stereoscopic views (1) Possibility (1) Nineteenth century (1) Mass media (1) Longitude (1) Life (1) Latitude (1) Enlightenment (1) Demography (1) Demographic surveys (1) Curves (1) Current events (1) Comprehension (1) Average (1) Authors (1) Demography--Statistical methods (1) Technique (1) Use (1) Usage (1) Age (1) Synthesis (1) Sizes (1) Remount service (1)