Overstromingen tijdens de negen stormvloeden sinds 1877

A short survey of the nine floods which have ravaged the Netherlands since 1877 is here presented. The flooded areas are given on the maps; the figures in the tables give the inundated surface in ha per province. From these data it can be seen of what great importance the closing of the Zuiderzee and of the inlets between the Westerschelde and...

De Delf

Local inhabitants were of the opinion that a river, or waterway, had existed North of Delweg. There were so-called "groundless" ditches (soft bottomed) and "Uterdieken" (lands outside the dykes). This old waterway therefore would have had no locks but small dykes. Borings and pressure soundings proved this idea to be true. The canal must have...

De Rijn-Maasmond (Helinium) in de Romeinse tijd

Bepaling van de oude ligging van de mond van de Rijn aan de hand van boringen in dit gebied op basis van de aanwezigheid van veen in de boorkernen.