Newton and the Counterfeiter by Thomas Levenson

Levenson, Thomas. Newton and the Counterfeiter: The Unknown Detective Career of the Worlds Greatest Scientist. Boston: Houghton Mifflin Harcourt, 2009.

Scientists who become detectives have been the stuff of fiction before CSI: launched it into great popularity. Even Sherlock Holmes was a capable amateur scientist, though his scientific inquiries were aimed at making him a better detective. Though the scientist as detective is a fairly popular form of crime literature, the truth of it in one case is stranger than fiction.

Isaac Newton, renowned in his own day as well as ours as one of the greatest physicists who ever lived, left his post at Cambridge University to take a more lucrative patronage job as Warden of the Mint. One of his ostensible duties as warden was to investigate and prosecute cases of counterfeiting. It would be something like appointing Stephen Hawking to direct the Secret Service.

Typically, holders of this position weren’t expected to do more than the minimum required, leaving most of the work to assistants. Newton took his post seriously and pursued crime fighting with the same discipline and analytical rigor he used as a scientist while also completely re-minting all of England’s silver coins.

Readers who are already familiar with Newton’s scientific life might find that Levenson devotes too much of the book to it. His alchemical studies are more important to his work as warden because, even though esoteric from a scientific view, it made him familiar with the material as methods used by the mint and counterfeiters.

Newton put away (or to death) many counterfeiters. Levenson focuses on one, William Chaloner. Chaloner was an extraordinarily successful counterfeiter at his peak and much more ambitious and smart than most of his fellows. Where Newton’s life before the mint gets too much attention, Chaloner’s life doesn’t get enough. Since he was famous mostly for his crimes and some details of a counterfeiter’s life are necessarily hidden, there is probably much less source material to use to reconstruct his life.


The book builds up a little slowly through Newton’s younger day and then seems to rush through his mastership of the mint and his battle of wits with Chaloner. In spite of this weakness, the book is an interesting look on a lesser know chapter of Newton’s life.