Their speed must obviously depend greatly on topographical conditions.
Broadly speaking, they may be divided into two classes, of which the first includes topographical, chorographical and general maps, the second the great variety designed for special purposes.
Mappa mundi was the medieval Latin for a map of the world which the ancients called Tabula totius orbis descriptionem Topographical maps and plans are drawn on a scale sufficiently large to enable the draughtsman to show most objects on a scale true to nature.
The original surveys, carefully revised, have been published since 1870 as a Topographical Atlas of Switzerland - the so-called Siegfried Atlas, in 552 sheets.
Modern surveys in Sweden date from the organization of a corps of " Landematare," known since 1874 as a topographical department of the general staff.