This book contains all the letters that are known to survive from the correspondence of Charles Hutton (1737-1823). Hutton was one of the most prominent British mathematicians of his generation; he played roles at the Royal Society, the Royal Military Academy, the Board of Longitude, the 'philomath' network and elsewhere. He worked on the explosive force of gunpowder and the mean density of the earth, wining the Royal Society's Copley medal in 1778;...