The astronomical instruments (1618) and Catalogus librorum (1646) of Nicolaus Mulerius, with an essay on his place in the history of science

the long version

Comparative analysis of three auction catalogs of private libraries (Nicolaus Mulerius, 1646; Isaac Beeckman, 1637; Franciscus Gomarus (1641). Full analysis of Mulerius' catalog and identification of most of his books. Reappraisal of his place in the history of science. Study and identification of the two astronomical instruments featuring on Mulerius' formal Academy portrait by an unknown master (1618). Construction of perfectly working replicas on the occasion of the 4th centenary of the University of Groningen. The book is dedicated to the memory of Alex C. Klugkist (1945-2012), distinguished Director of University Library Groningen (1990-2010).