result had accrued to
practical medicine from Harvey's discovery of the circulation. But
Anatomy, Physiology, and Pathology have received a new light from this
novel method of contemplating the living structures, which has had a vast
influence in enabling the practitioner at least to distinguish and
predict the course of disease. We know as well what differences to
expect in the habits of a mucous and of a serous membrane, as what
mineral substances to look for in the chalk or the coal measures. You
have only to read Cullen's description of inflammation of the lungs or of
the bowels, and compare it with such as you may find in Laennec or
Watson, to see the immense gain which diagnosis and prognosis have
derived from general anatomy.

The second new method of studying the human structure, beginning with the
labors of Scarpa, Burns, and Colles, grew up principally during the first
third of this century. It does not deal with organs, as did the earlier
anatomists, nor with tissues, after the manner of Bichat. It maps the
whole surface of the body into an arbitrary number of regions, and
studies each region successively from the surface to the bone, or beneath
it. This hardly deserves the name of a science, although Velpeau has
dignified it with that title, but it furnishes an admirable practical way
for the surgeon who has to operate on a particular region of the body to
study that region. If we are buying a farm, we are not content with the
State map or a geological chart including the estate in question. We
demand an exact survey of that particular property, so that we may know
what we are dealing with. This is just what regional, or, as it is
sometimes called, surgical anatomy, does for the surgeon with reference
to the part on which his skill is to be exercised. It enables him to see
with the mind's eye through the opaque tissues down to the bone on which
they lie, as if the skin were transparent as the cornea, and the organs
it covers translucent as the gelatinous pulp of a medusa.

It is curious that the Japanese should have anticipated Europe in a kind
of rude regional anatomy. I have seen a manikin of Japanese make traced
all over with lines, and points marking their intersection. By this
their doctors are guided in the performance of acupuncture, marking the
safe places to thrust in needles, as we buoy out our ship-channels, and
doubtless indicating to learned eyes the spots where incautious meddling
had led to t