Medical and Surgical Reporter
Philadelphia April 27, 1861. New Series Volume 6, Number 4, page 86.
The Medical Times and Gazette, of March 23, contains a letter from Mr. Simpson, of Edinburgh, in regard to his recent removal of the coccyx for long-continued coccydynia, an operation which, at the time, he believed to be original with himself. Mr. Simpson acknowledges the priority of the operation to Dr. Nott, of Mobile, who first performed it in 1832, and has, since that time, frequently repeated it with success.
(Note - the first occurrence of the spelling 'coccydynia'.)