Abstract
On January 4, 1994, one of the leading Christian historians of science in the worldand one of only two honorary members of the American Scientific Affiliation (ASA)passed away. It was a passing not recognized to any great extent in the Anglo-Saxon world. Yet Professor Reijer Hooykaas exerted a great influence on many in the United Kingdom and North America through his writing and lecturing activities. He repeatedly spoke at conferences of Christians in Science, formerly known as The Research Scientists' Christian Fellowship (RSCF) in the UK, including the joint 1985 RSCF/ASA Conference at Oxford University. He also lectured with his close friend, Professor Donald MacKay at Regent College. There is a certain irony in this: namely, that his life and work, particularly his Christian witness, were often more recognized and appreciated by foreigners than by his own countrymen. I would like to give the reader a brief sketch of Hooykaas's life and some of his more important contributions to the history of science.