Groningen, Erven B. van der Kamp, 1898-1900, complete set in two volumes, 127-xvi,333pp. linen binding with original fronts preserved, extensive treatise on watermanagement in the province Groningen, first subject: Het zetten van watermolens in de Provincie Groningen, From the library of Prof. Dr. G.P. van de Ven. Gerard van de Ven (1941-2017) was a prominent Dutch scholar, author and professor at the Universiteit van Amsterdam. He was specialised in waterstaatsgeschiedenis (history of water management) and historical geography. He wrote many books, articles and contributed to many publications. Very good copies.