The Principles of Mr. Harrison's Time Keeper: With Plates of the Same is a book written by John Harrison and published in 1767. The book is a detailed explanation of the principles behind Harrison's invention of a marine chronometer. The marine chronometer was a device used to accurately measure time at sea, which was crucial for navigation and the calculation of longitude. The book includes detailed diagrams and illustrations of the marine chronometer, as well as explanations of the various components and how they work together to accurately measure time. Harrison's invention was a significant breakthrough in the field of navigation, and his work was instrumental in solving the problem of determining longitude at sea.The book is considered a classic in the field of horology and is still referenced by modern watchmakers and clockmakers. It provides a fascinating insight into the history of timekeeping and the development of accurate time measurement devices. Overall, The Principles of Mr. Harrison's Time Keeper: With Plates of the Same is a valuable resource for anyone interested in the history of horology or the science of time measurement.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.
