Everything about Andrea Cesalpino totally explained
Andrea Cesalpino (
Latinized as
Andreas Caesalpinus) (
June 6,
1519 –
February 23,
1603) was an
Italian physician,
philosopher and
botanist.
In his works he
classified plants according to their
fruits and
seeds, rather than alphabetically or by medicinal properties. In
1555, he succeeded
Luca Ghini as director of the
botanic garden in
Pisa. The botanist
Pietro Castelli was one of his students. Cesalpino also did limited work in the field of
physiology. He theorized a
circulation of the
blood. However, he envisioned a "chemical circulation" consisting of repeated
evaporation and
condensation of blood, rather than the concept of "physical circulation" popularized by the writings of
William Harvey (1578–1657).
Biography
Cesalpino was born at
Arezzo,
Tuscany.
For his studies at the
University of Pisa his instructor in medicine was R. Colombo (d. 1559), and in botany the celebrated
Luca Ghini. After completing his course he taught
philosophy,
medicine, and
botany for many years at the same university, besides making botanical explorations in various parts of Italy. At this time the first
botanical gardens in
Europe were laid out; the earliest at
Padua, in 1546; the next at
Pisa in 1547 by Ghini, who was its first director. Ghini was succeeded by Cesalpino, who had charge of the Pisan garden 1554-1558. When far advanced in years Cesalpino accepted a call to
Rome as professor of medicine at
University of Rome La Sapienza and physician to
Pope Clement VIII. It isn't positively certain whether he also become the
chief superintendent of the
Roman botanical garden which had been laid out about 1566 by one of his most celebrated pupils,
Michele Mercati.
Philosophical works
All of Cesalpino's writings show the man of genius and the profound thinker. His style, it's true, is often heavy, yet in spite of the scholastic form in which his works are cast, passages of great beauty often occur. Modern botanists and physiologists who are not acquainted with the writings of
Aristotle find Cesalpino's books obscure; their failure to comprehend them has frequently misled them in their judgment of his achievement.
No comprehensive summing up of the results of Cesalpino's investigations, founded on a critical study of all his works has appeared, neither has there been a complete edition of his writings. Seven of these are positively known, and most of the seven have been printed several times, although none have appeared since the
17th century. In the following list the date of publication given is that of the first edition.
His most important philosophical work is
Quaestionum peripateticarum libri V (1569). Cesalpino proves himself in this to be one of the most eminent and original students of Aristotle in the
16th century. His writings, however, show traces of the influence of
Averroes, hence he's an Averroistic Aristotelean; apparently he was also inclined to
pantheism, consequently he was included, later, in the Spinozists before
Spinoza. A
Protestant opponent of Aristotelean views,
Nicolaus Taurellus wrote several times against Cesalpino. The work of Taurellus entitled
Alpes caesae, etc. (1597), is entirely devoted to combating the opinions of Cesalpino, as the play on the name Caesalpinus shows. Nearly one hundred years later Cesalpino's views were again attacked by
Samuel Parker, in a work entitled
Disputationes de Deo et providentia divina (1678).
Cesalpino repeatedly asserted the steadfastness of his
Catholic principles and his readiness to acknowledge the falsity of any philosophical opinions expounded by him as Aristotelean doctrine, which should be contrary to revelation. In Italy he was in high favour both with the
secular and spiritual rulers.
Medical and physiological works
Cesalpino's physiological investigations concerning the
circulation of the
blood are well known, but even up to the present time they've been as often overestimated as undervalued. An examination of the various passages in his writings which bear upon the question shows that although it must be said that Celsalpino had penetrated further into the secret of circulation of the blood than any other physiologist before
William Harvey, still he hadn't attained to a thorough knowledge, founded on anatomical research, of the entire course of the blood. Besides the work
Quæstionum peripateticarum already mentioned, reference should be made to
Quaestionum medicarum libri duo (1593).
Botanical works
His most important publication was
De plantis libri XVI (1583). The date of its publication, 1583, is one of the most important in the history of botany before
Carolus Linnaeus. The work is dedicated to the Grand Duke
Francesco I de' Medici. Unlike the "
herbals" of that period, it contains no illustrations. The first section, including thirty pages of the work, is the part of most importance for botany in general. From the beginning of the 17th century up to the present day botanists have agreed in the opinion that Cesalpino in this work, in which he took Aristotle for his guide, laid the foundation of the
morphology and physiology of plants and produced the first scientific classification of
flowering plants. Three things, above all, give the book the stamp of individuality: the large number of original, acute observations, especially on flowers, fruits, and seeds, made, moreover, before the discovery of the
microscope, the selection of the organs of fructification for the foundation of his botanical system; finally, the ingenious and at the same time strictly philosophical handling of the rich material gathered by observation. Cesalpino issued a publicatlon supplementary to this work, entitled
Appendix ad libros de plantis et quaestiones peripateticas (1603).
Cesalpino is also famous in the history of botany as one of the first botanists to make an
herbarium; one of the oldest herbaria still in existence is that which he arranged about 1550-60 for Bishop
Alfonso Tornabono. After many changes of fortune the herbarium is now in the
Museo di Storia Naturale di Firenze at
Florence. It consists of 260 folio pages arranged in three volumes bound in red leather, and contains 768 species of plants. A work of some value for
chemistry,
mineralogy, and
geology was issued by him under the title
De metallicis libri tres (Rome, 1596). Some of its matter recalls the discoveries made at the end of the eighteenth century, as those of
Antoine Lavoisier and
René Just Haüy, it also shows a correct understanding of
fossils.
The Franciscan monk
Karl Plumier gave the name of
Cesalpinia to a plant genus and Linnaeus retained it in his system. At the present day this genus includes approximately 150 species and belongs family
Fabaceae, subfamily
Caesalpinioideae, which contains a large number of useful plants. Linnaeus in his writings often quotes his great predecessor in the science of botany and praises Cesalpino in the following lines:
Quisquis hic exstiterit primos concedat honores
Casalpine Tibi primaque certa dabit.
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