h
contains an account of the Goths, the Lombards and the Italians of the
earlier Middle Ages from the materials then at hand. He is best known
in medicine for his "Annotations on Cornelius Celsus' De Re Medica."
He wrote a treatise on Destination and a monograph on The Dietetic
Value of Melons. His book on Destination appeared in editions at
Venice, at Basel, at Ravenna and probably also at Rome. Rubeus has a
place in most of the histories written at this time.

Another of the physicians of Pope Clement VIII was Jerome Cordella.
While he is highly praised for his knowledge of philosophy and his
skill in medicine he is better known for his intimate friendship with
St. Philip Neri, of whom Cardinal Newman, in the nineteenth century,
was so proud to proclaim himself the spiritual son. Jerome was of
assistance to St. Philip particularly in the magnificent social work
which meant so much for the correction of social abuses at this time
and, above all, the occupation of youthful minds with higher thoughts.

Among Zecchius' books, who was another of the physicians to Pope
Clement VIII, is one on "The Means of Curing Especially Such Fevers as
Arise from Putrid Humors." Another is called "Medical Consultations or
The Whole Practice of Medicine Briefly Treated," a third is on "The
Use of Italian Waters," and then besides there are a series of shorter
papers on Hippocrates' Aphorisms, on Digestion, on Purgation, on The
Letting of Blood, on Critical Days and on the Morbus Gallicus.

Caesalpinus the Botanist.--Caesalpinus is mentioned in the {458} text
of the previous edition of this work as a professor at the Papal
Medical School, the Sapienza, and physician to Pope Clement VIII. In
the history of science, however, he should rather be counted among the
botanists than the physicians, though there is no doubt that he was
the first fully to describe the systemic circulation. Edward Lee
Greene, in his Landmarks of Botanical History, which is "A Study of
Certain Epochs in the Development of the Science of Botany" (part of
volume 54 of the Smithsonian Miscellaneous Collections, Washington,
1909), mentions that "The Caesalpinus system of plant arrangement
seemed incomparably superior to every one that had preceded it."
Linnaeus in the warmth of zeal for the great Caesalpino had pronounced
him "first in the order of time among real systematists." Caesalpinus
is then one of the great founders of modern botany and his work _De
Plantis_ is