ontemplate the nature known to us by experience in this light,
there is for us no other impenetrable miracle or mystery."

Let us turn to a branch of knowledge which deals with certainties up to
the limit of the senses, and is involved in no speculations beyond them.
In certain points of view, HUMAN ANATOMY may be considered an almost
exhausted science. From time to time some small organ which had escaped
earlier observers has been pointed out,--such parts as the tensor tarsi,
the otic ganglion, or the Pacinian bodies; but some of our best
anatomical works are those which have been classic for many generations.
The plates of the bones in Vesalius, three centuries old, are still
masterpieces of accuracy, as of art. The magnificent work of Albinus on
the muscles, published in 1747, is still supreme in its department, as
the constant references of the most thorough recent treatise on the
subject, that of Theile, sufficiently show. More has been done in
unravelling the mysteries of the fasciae, but there has been a tendency
to overdo this kind of material analysis. Alexander Thomson split them
up into cobwebs, as you may see in the plates to Velpeau's Surgical
Anatomy. I well remember how he used to shake his head over the coarse
work of Scarpa and Astley Cooper,--as if Denner, who painted the separate
hairs of the beard and pores of the skin in his portraits, had spoken
lightly of the pictures of Rubens and Vandyk.

Not only has little been added to the catalogue of parts, but some things
long known had become half-forgotten. Louis and others confounded the
solitary glands of the lower part of the small intestine with those which
"the great Brunner," as Haller calls him, described in 1687 as being
found in the duodenum. The display of the fibrous structure of the brain
seemed a novelty as shown by Spurzheim. One is startled to find the
method anticipated by Raymond Vieussens nearly two centuries ago. I can
hardly think Gordon had ever looked at his figures, though he names their
author, when he wrote the captious and sneering article which attracted
so much attention in the pages of the "Edinburgh Review."

This is the place, if anywhere, to mention any observations I could
pretend to have made in the course of my teaching the structure of the
human body. I can make no better show than most of my predecessors in
this well-reaped field. The nucleated cells found connected with the
cancellated structure of the bones, which