The second part of Dr Alison's paper treated, first, of the inferences which may be drawn from the study of the Nerves of the Eyeball, touching the use of the Ganglia of the Sympathetic Nerve, which are now generally admitted to have essentially the same composition as the ciliary ganglion, i. e. to have motor as well as sensitive filaments from the spinal cord, besides the cords of communication with the other ganglia.