The Towns Hasselt, Maaseik, St.-Truiden And Tongeren In Limburg. Statistics Based On The Land Registry, 1842-1844: The land registry is a historical source of the first importance, but rarely used. This is a pity, for there is no other document that gives in such minute detail a description of each lot. This goes for the "Tableau indicatif primitif". On the basis of these descriptions, one can find out about the cultivation, the relative value of the different kinds of land, the number and importance of the buildings used for industry, the houses, etc.