(1) "Researches into the structure of the spinal cord." 1851 (2) "On certain Functions of the Spinal Cord, with further Investigations into its Structure. Vol 143 part III, 1853 (3) "Researches on the Intimate Structure of the Brain, Human and Comparative First Series. On the Structure of the Medulla Oblongata." 1857 (4) "Further Researches on the Gray Substance of the Spinal Cord." 1858 (5) "Researches on the Intimate Structure of the Brain Second Series. 1867.

J. Lockhart Clakre. 5 (1851-1867) papers with superb illustrations by Clarke ALL are extracts from the "Philosophical Transactions" and includes: (1) "Researches into the structure of the spinal cord." Vol 141, 1851, pp 607-621, with six beautiful plates. Nice copy though the plates have some foxing the text is largely clean and crisp, but the plates didn't survive as well. This is a major paper by Clarke (and his first publication). Garrison Morton 1360. (2) "On certain Functions of the Spinal Cord, with further Investigations into its Structure. Vol 143 part III, 1853, pp 347-356, two plates (with pretty heavy foxing). Text is VG while plates are Fair. (3) "Researches on the Intimate Structure of the Brain, Human and Comparative First Series. On the Structure of the Medulla Oblongata." 1857pp 231-259, 5 plates of the Clarke drawings. (4) "Further Researches on the Gray Substance of the Spinal Cord." 1858, pp 437-467, 6 plates. Text is clean and crisp, the plates are only GOOD with some foxing. Still, artistry and exactness is stupendous. (5) "Researches on the Intimate Structure of the Brain Second Series. 1867, pp 263-331, 6 plates. [++] Clarke made important researches on the spinal cord. He described the nucleus dorsalis. He introduced the method of mounting sections with Canada balsam.--Garrison & Morton 1360. [++] "He became devoted to microscopical research on the brain and nervous system, and applying a new method, and proceeding with extreme care and thoroughness, he established many new facts of structure which had important bearings on the physiology and pathology of the nervous system. His first paper, "Researches into the Structure of the Spinal Cord", was received by the Royal Society on 15 October 1850, and published in their Transactions for 1851. It was illustrated, like many of his subsequent papers, by extremely accurate and valuable drawings by himself, and these have been subsequently reproduced in numerous works. [Clarke] received the Royal Medal of the Royal Society in 1861, and in 1867 he was elected an honorary follow of the King and Queen s College of Physicians, Ireland. Late in life, he attended St. George s Hospital and qualified as a surgeon, still later obtained the M.D. St. Andrews (1869), and became a member of the London College of Physicians (1871), and entered upon consulting practice in nervous diseases. He became physician to the Hospital for Epilepsy and Paralysis, but gained no great amount of practice, probably owing to his retired habits, and his having published no book by which the public could judge of his work. He died on 25 January 1880 from phthisis."--Wikipedia.…