Zusammenfassung
Summary
For the history of surveying a manuscript stored in Southern France and written about 1400 by Bertrand Boysset (~1345 – ~1416) is from high significance. Therein not only late medieval field measurement and boundary marking is explained elaborately in two treaties in the Provençal language (»La siensa de destrar« and »La siensa d’atermenar«), but at the same time it is also visualised impressively in more than 180 coloured illustrations. The impressive manuscript, which was provided for didactical reasons, shows besides surveying in the field particularly also the setting of boundary stones. Nevertheless, the manuscript has to be estimated in the spirit of the age: The unique depiction where Jesus Christ hands out the rod to the land surveyor, can be interpreted in the theological sense of the »Deus Geometra«, who orders everything »in measure, number, and weight« (Liber Sapientiae 11,20) and here transmits the art of surveying to the human mind as »measure of all things«.