Jac. P. Thijsse
The leading Dutch conservationist Jac. P. Thijsse (1865–1945) remains well known today – not only for his influential studies of Dutch botany and the early history of the environmental movement, but most of all for his charming popular books such as A Year in Birds and Blonde Dunes. He co-founded an influential nature magazine and a major Dutch organization for conservation and was instrumental in establishing the first Dutch natural monument, the Naardermeer.