The Digital Library of the Royal Netherlands Academy of Arts and Sciences presents thematic websites and collections of digital materials that are relevant for the history of science and scholarship in the Netherlands.

History of Science and Scholarship
The collection History of Science and Scholarship in The Netherlands brings together digital versions of publications of well-known Dutch scientists and scholars from the past, from Beeckman to Zeeman.

Proceedings
For the collection Proceedings of the Royal Netherlands Academy of Arts and Sciences complete volumes of the Proceedings of the Academy, which were published from 1898 to 1997, have been digitized. At the moment the collection includes all articles from the first 22 volumes (from the beginning up till 1920).

Background
The Academy has been publishing academic monographs and journals for many years. Most of its recent titles are not only available in book form, but also as free downloadable PDFs. In the past years the Academy has launched the prestigeous series History of Science and Scholarship in The Netherlands to strengthen its publishing programme in the history of science. The digital library has been set up as a complementary activity, to bring together older materials and new publications in the digital environment.

For one of the books in the series, How Fluids Unmix. Discoveries by the School of Van der Waals and Kamerlingh Onnes, the author, Johanna Levelt Sengers, has prepared supplementary materials which are presented on a thematic website. This site, Van der Waals and the Dutch School, is devoted to work performed in the Netherlands around 1900 on phase separation and critical behavior of fluids.