Petrus Hispanus had predecessors, however, in William of Shyreswood (died 124 9 as chancellor of Lincoln) and Lambert of Auxerre, and it has been hotly disputed whether the whole of the additions are not originally due to the Byzantine Synopsis of Psellus.
His Synopsis was finished in 1785; two supplements were added in 1787 and 1802, 6 and in 1790 he produced an abstract of the work under the title of Index Ornithologicus, wherein he assigned names on the Linnaean method to all the species described.
In his Synopsis physicae ad lumen divinum reformatae he gives a physical theory of his own, said to be taken from the book of Genesis.
The first two editions of the Catalogus plantarum Angliae (1670, 1677) were likewise arranged alphabetically; but in the Synopsis stirpium Britannicarum (1690, 1696, also re-edited by Dillenius, 1724, and by Hill, 1760) Ray applied the scheme of classification which he had by that time elaborated in the Methodus and the Historia plantarum.
This was his General Synopsis of Birds, and, though formed generally on the model of Linnaeus, greatly diverged in some respects therefrom.
He also published a Synopsis Evangeliorum, conjointly with W.
For ordinary practical purposes this synopsis is useless, most of the anatomical characters being visible only in the macerated skull.
Elliot, Synopsis of the Mammals of North America (Chicago, 1901) and The Mammals of Middle America and the West Indies (Chicago, 1904); W.
Besides editing his friend Willughby's books, Ray wrote several zoological works of his own, including Synopsis methodica Animalium Quadrupedum et Serpentini Generis (1693), that is to say, both mammals and reptiles, and Synopsis methodica Avium et Pisciurn (1713); the latter was published posthumously, as was also the more important Historia Insectorum (1710), which embodied a great mass of Willughby's notes.
His chief works were First Lines of the Practice of Physic (1774); Institutions of Medicine (1770); and Synopsis Nosologicae Medicae (1785), which contained his classification of diseases into four great classes - (t) Pyrexiae, or febrile diseases, as typhus fever; (2) Neuroses, or nervous diseases, as epilepsy; (3) Cachexiae, or diseases resulting from bad habit of body, as scurvy; L and (4) Locales, or local diseases, as cancer.