On this page references to a complete list of publications as pdf (more than is
contained in the DARE database) and a short curriculum vitae, also as pdf
Corrections on some of my books may be found in the following ILLC report X-2018-2.
The report combines lists of corrections poster earlier here, with some improvements, and a revised discussion of the theory of the creative subject as proposed by G. Kreisel.
My interest in botany led also to an interest in the history of biology, in particular natural history travel narratives. I published two popular books in Dutch on this theme, Tijgers op de Ararat (2003) and Kolibries in de oren (2009), and also an anthology of Dutch natural history travel narratives, Van Spitsbergen naar Suriname (2007). All three books appeared with Uitgeverij Atlas, Amsterdam.
A Bibliography of Natural History Travel Narratives appeared December 2016. In this book I have tried to list all natural history travel narratives, all editions, all translations which I could find. But the coverage is not complete, for example the covering of books in the Slavic languages is fragmentary.
English: Over a number of years I have mapped, together with my wife, the distribution of Rubus species in the "Utrechtse heuvelrug", which I take here to include the region of "Het Gooi". The mapping was done on a square-kilometer grid (Amersfoort coordinates). The maps represent only my own observations; of course other people have been mapping Rubus in part of the area concerned.
Dutch: in de loop van een flink aantal jaren heb ik samen met mijn vrouw de verspreiding van Rubus-soorten in de Utrechtse Heuvelrug in kaart gebracht. De Utrechtse Heuvelrug omvat tevens Het Gooi. Het karteren geschiedde op basis van een raster van vierkante kilometers (Amersfoort-coördinaten) De kaartjes representeren alleen mijn eigen waarnemingen; ook anderen hebben her en der in het gebied geïnventariseerd.
More recently I have been writing blogs (in Dutch) about natural history travel literature and other natural history books, many of them relating to items in the collection of the Artis Library. The first series of these blogs appeared on the website of Bijzondere Collecties of the University Library of the University of Amsterdam; more recently I have been mailing them in the form of a pdf to a list of interested people. All blogs are listed below and can be downloaded.
Shortly after retirement I was asked to write a piece with personal reminiscences for the ILLC-magazine. It appeared under the title Looking Back.
The sudden death of my Russian colleague Albert Dragálin in 1998 came as a shock; the few times I met him he seemed always full of life. His work and personality had made a deep impression on me and shortly after his death I wrote a short tribute.
Below a link to an English translation of my valedictory lecture, delivered in September 2000. The illustrations are not quite the same as actually shown during the lecture; some had to be left out for reasons of copyright.