rty-seven years of age, Harvey was chosen to deliver
the lectures on surgery and anatomy to the College of Physicians, and it
is possible that at this time he gave an exposition of his views on the
circulation. He continued to lecture on the same subject for many years
afterwards, although he did not publish his views until 1628, when they
appeared in the work "De Motu Cordis."

Some few years after his appointment as lecturer to the college, he was
chosen one of the physicians extraordinary to King James I., and about
five or six years after the accession of Charles I. he became physician
in ordinary to that unfortunate monarch. The physiologist's
investigations seem to have interested King Charles, for he had several
exhibitions made of the _punctum saliens_ in the embryo chick, and also
witnessed dissections from time to time.

When, in 1630, the young Duke of Lennox made a journey on the Continent,
Harvey was chosen to travel with him, and probably remained abroad
about two years. During this time Harvey most likely visited Venice. Of
this tour the doctor speaks in the following terms in a letter written
at the time: "I can only complayne that by the waye we could scarce see
a dogg, crow, kite, raven, or any bird or any thing to anatomise; only
sum few miserable poeple the reliques of the war and the plauge, where
famine had made anatomies before I came."

Six years after this, in April, 1636, he accompanied the Earl of Arundel
in his embassy to the emperor. Having to visit the principal cities of
Germany, he was thus afforded an opportunity of meeting the leading
biologists of the time, and at Nuremberg he probably met Caspar
Hoffmann, and made that public demonstration of the circulation of the
blood which he had promised in his letter dated from that city, and
which convinced every one present except Hoffmann himself. Hollar, the
artist, informs us that Harvey's enthusiasm in his search for specimens
often led him into danger, and caused grave anxiety to the Earl of
Arundel. "For he would still be making of excursions into the woods,
making observations of strange trees, plants, earths, etc., and
sometimes like to be lost; so that my lord ambassador would be really
angry with him, for there was not only danger of wild beasts, but of
thieves."

Soon after his return to England, as court physician, his movements
became seriously restricted by the fortunes of the king. Aubrey says,
"When King Charles I., by reas