* In Hierapolis Bambyce, Syria ( modern Manbij ), according to the treatise De Dea Syria, the sanctuary of the Syrian Goddess contained a robed and bearded image of Apollo.

An exception to this general tendency is his Latin treatise " De falconibus " ( later inserted in the larger work, De Animalibus, as book 23, chapter 40 ), in which he displays impressive actual knowledge of a ) the differences between the birds of prey and the other kinds of birds ; b ) the different kinds of falcons ; c ) the way of preparing them for the hunt ; and d ) the cures for sick and wounded falcons.

On the Soul ( De anima ) is a treatise on the soul written along the lines suggested by Aristotle in his own De anima.

# De Sacramentis Corporis et Sanguinis Domini ; a treatise, in three books, against the Berengarian heresy, highly commended by Peter of Cluny and Erasmus.

Andreas Capellanus ( Capellanus meaning " chaplain ") was the 12th-century author of a treatise commonly known as De amore (" About Love "), and often known in English, somewhat misleadingly, as The Art of Courtly Love, though its realistic, somewhat cynical tone suggests that it is in some measure an antidote to courtly love.

His reputation among Protestants was at the time so bad that he was charged by Thomas Browne in 1643 with the authorship of the legendary-apocryphal heretical treatise De tribus Impostoribus, as well as with having carried his alleged approval of polygamy into practice.

* A treatise on mysticism, De Revelationibus et Visionibus, etc.

Galen's theory of the physiology of the circulatory system endured until 1628, when William Harvey published his treatise entitled De motu cordis, in which he established that blood circulates, with the heart acting as a pump.

* De differentiis verborum, which amounts to brief theological treatise on the doctrine of the Trinity, the nature of Christ, of Paradise, angels, and men.

After several years in Rome, he travelled with Bonosus to Gaul and settled in Trier where he seems to have first taken up theological studies, and where he copied, for his friend Tyrannius Rufinus, Hilary of Poitiers ' commentary on the Psalms and the treatise De synodis.

This treatise ( Della pittura ) was also known in Latin as De Pictura, and it relied in its scientific content on classical optics in determining perspective as a geometric instrument of artistic and architectural representation.

In both Della pittura and De statua, a short treatise on sculpture, Alberti stressed that " all steps of learning should be sought from nature.

Among Alberti's smaller studies, pioneering in their field, were a treatise in cryptography, De componendis cifris, and the first Italian grammar.

In his treatise De pictura ( 1435 ) he explains the theory, of the accumulation of people, animals, and buildings, which create harmony amongst each other, and " hold the eye of the learned and unlearned spectator for a long while with a certain sense of pleasure and emotion ".

His treatise ' De polypo cordis ' ( 1666 ) was important for understanding blood composition, as well as how blood clots.

A great part of her early education came from her mother, who consulted the Spanish humanist Juan Luis Vives for advice and commissioned him to write De Institutione Feminae Christianae, a treatise on the education of girls.

It was used in the treatise De Natura Fossilium, published in 1546 by the German mineralogist Georg Bauer, also known as Georgius Agricola.

Among them are Secretum (" My Secret Book "), an intensely personal, guilt-ridden imaginary dialogue with Augustine of Hippo ; De Viris Illustribus (" On Famous Men "), a series of moral biographies ; Rerum Memorandarum Libri, an incomplete treatise on the cardinal virtues ; De Otio Religiosorum (" On Religious Leisure ") and De Vita Solitaria (" On the Solitary Life "), which praise the contemplative life ; De Remediis Utriusque Fortunae (" Remedies for Fortune Fair and Foul "), a self-help book which remained popular for hundreds of years ; Itinerarium (" Petrarch's Guide to the Holy Land "); a number of invectives against opponents such as doctors, scholastics, and the French ; the Carmen Bucolicum, a collection of 12 pastoral poems ; and the unfinished epic Africa.

Besides these, as Sylvester II he wrote a dogmatic treatise, De corpore et sanguine Domini — On the Body and Blood of the Lord.

Laennec wrote the classic treatise De l ' Auscultation Médiate, published in August 1819.

The Roman medical treatise De Medicina by Aulus Cornelius Celsus contained a description of lithotomy, and this work served as the basis for this procedure until the 18th century.

The 1st-century writer Celsus described two surgical techniques for foreskin restoration in his medical treatise De Medicina.

Of the numerous volumes of his encyclopedia, only one remains intact, his celebrated treatise On Medicine ( De Medicina ), which is divided into eight books.

The next traditional step then was to accept it as the authoritative textbook of the Christian faith just as one would accept a treatise on any earthly `` science '', and I submitted to its conditions according to Christ's invitation and promise that, `` If any man will do his will, he shall know of the doctrine, whether it be of God, or whether I speak of myself '' ( John 7: 17 ).

Jean-Jacques Ampère, a successful merchant, was an admirer of the philosophy of Jean-Jacques Rousseau, whose theories of education ( as outlined in his treatise Émile ) were the basis of Ampère ’ s education.

On the other hand, it now seems practically demonstrated that Alain de Lille was the author of the Ars catholicae fidei and the treatise Contra haereticos.

He was also an accomplished astronomer ; he lectured on Ptolemy and is known to have written a treatise on the astrolabe.

The decimal point notation was introduced by Sind ibn Ali, he also wrote the earliest treatise on Arabic numerals.

In 825 Al-Khwārizmī wrote a treatise in Arabic, On the Calculation with Hindu Numerals, which was translated into Latin from Arabic in the 12th century as Algoritmi de numero Indorum.

Agathocles was cited as from the lowest, most abject condition of life and as an example of “ those who by their crimes come to be princes ” in Chapter VIII of Niccolò Machiavelli ’ s treatise on politics, The Prince ( 1513 ).

A fragment of his treatise On burning-glasses was published as (" Concerning wondrous machines ") by L. Dupuy in 1777, and also appeared in 1786 in the forty-second volume of the Histoire de l ' Academie des Instrumentistes.

As for engravings, Dürer's work was restricted to portraits and illustrations for his treatise.

It was in Bologna that Dürer was taught ( possibly by Luca Pacioli or Bramante ) the principles of linear perspective, and evidently became familiar with the ' costruzione legittima ' in a written description of these principles found only, at this time, in the unpublished treatise of Piero della Francesca.

The author claims to have consulted all the best authorities, the most important of which was a lost treatise on the subject by Polybius.

that the real author was Herennius Philo of Byblus, who was born during the reign of Nero and lived till the reign of Hadrian, and that the treatise in its present form is a revision prepared by a later Byzantine editor, whose name may have been Ammonius.

Pascal was an important mathematician, helping create two major new areas of research: he wrote a significant treatise on the subject of projective geometry at the age of sixteen, and later corresponded with Pierre de Fermat on probability theory, strongly influencing the development of modern economics and social science.

Following Desargues ' thinking, the sixteen-year-old Pascal produced, as a means of proof, a short treatise on what was called the " Mystic Hexagram ", Essai pour les coniques (" Essay on Conics ") and sent it — his first serious work of mathematics — to Père Mersenne in Paris ; it is known still today as Pascal's theorem.

Central to classical liberal ideology was their interpretation of John Locke's Second treatise of government and " A letter concerning toleration ", which had been written as a defence of the Glorious Revolution of 1688.

Photius compared Clement's treatise, which like his other works was highly syncretic, featuring ideas of Hellenistic, Jewish and Gnostic origin, unfavourably against the prevailing orthodoxy of the 9th century.

The Zohar, which was written in the 13th century, is generally held as the most important esoteric treatise of the Jews.

The last person known to have been able to read Etruscan was the Roman emperor Claudius ( 10 BC – AD 54 ), the author of a treatise in twenty volumes on the Etruscans, Tyrrenikà ( now lost ), who compiled a dictionary ( also lost ) by interviewing the last few elderly rustics who still spoke the language.

While Charles Darwin is mainly noted for his treatise on evolution, he was one of the founders of soil ecology, and he made note of the first ecological experiment in The Origin of Species.

* The Snouters: Form and Life of the Rhinogrades, by Zoologist Gerolf Steiner, purports to be a non-fictional natural history study, and was written, published, and presented as if it were an actual scientific treatise documenting the recently-extinct indigenous wildlife (" Rhinogradentia ") of the equally fictitious Hi-yi-yi archipelago.