Reprint of the 1837 ed. published by Sherwood, Gilbert, & Piper, London.

Part I of the author's Memoirs of the nervous system... and the Croonian lectures.

I. On the reflex function of the medulla oblongata and medulla spinalis [read before the Royal society, on June the 20th, 1883]

II. On the true spinal marrow, and the excito-motory system of nerves [read before the Royal society on February the 16th and 23rd, and March the 2d, 1837]