resenting that action of his, sent soldiers to seize his papers. And
while I imagine they found nothing treasonable among those papers, yet,
in the process of rummaging through them, they destroyed all the
materials which Harvey had spent a laborious life in accumulating; and
hence it is that the man's work and labours are represented by so
little in apparent bulk.

What I chiefly propose to do to-night is to lay before you an account of
the nature of the discovery which Harvey made, and which is termed the
Discovery of the Circulation of the Blood. And I desire also, with
some particularity, to draw your attention to the methods by which that
discovery was achieved; for, in both these respects, I think, there will
be much matter for profitable reflection.

Let me point out to you, in the first place, with respect to this
important matter of the movements of the heart and the course of the
blood in the body, that there is a certain amount of knowledge which
must have been obtained without men taking the trouble to seek
it--knowledge which must have been taken in, in the course of time, by
everybody who followed the trade of a butcher, and still more so by
those people who, in ancient times, professed to divine the course of
future events from the entrails of animals. It is quite obvious to
all, from ordinary accidents, that the bodies of all the higher animals
contain a hot red fluid--the blood. Everybody can see upon the surface
of some part of the skin, underneath that skin, pulsating tubes, which
we know as the arteries. Everybody can see under the surface of the
skin more delicate and softer looking tubes, which do not pulsate, which
are of a bluish colour, and are termed the veins. And every person who
has seen a recently killed animal opened knows that these two kinds of
tubes to which I have just referred, are connected with an apparatus