Tom KrchaKrchaitibarenDivdaun, Himachal Pradesh 175016, HindistanitibarenDivdaun, Himachal Pradesh 175016, Hindistan

This was an entertaining and short story about John Harrison and is obsessive development of four marine clocks capable of enabling trans-oceanic navigation. Source material on Harrison is slim and so is this volume. Only a superficial treatment of the technologies of the clocks is given (otherwise the book would bog down and suffer readability.) I would have appreciated more photos of the clocks, but perhaps this was a failing only of the paperback? The only images of the clocks are shown very small in the front cover. A good read.