English medical doctor and lexicographer. He created the Thesaurus of English Words and Phrases (Roget's Thesaurus) as an exercise while imprisoned. ALS signed “Dr. Roget,” one page, 4.25 x 7, July 5, 1830. In full: “Dr. Roget’s compliments to the Committee of the Russell Institution & requests the favour of being allowed to take out of the Library Parkinson’s Organic Remains.” Accompanied by a partial ALS and signature, “P. M. Roget,” addressed to M. Faraday. Light wrinkling and creasing to letter, small spot to lower right, and a pencil notation along top edge, otherwise fine condition. RRAuction COA.