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EUCLID [EUCLEIDES], of Megara, founder of the Megarian (also called the eristic or dialectic) school of philosophy, was born c. 450 B.C., probably at Megara, though Gela in Sicily has also been named as his birthplace (Diogenes Lacrtius ii. 106), and died in 3 ...

... k iv. are new. That he made the fullest use of his predecessors' works, such as Euclid's four Books on Conies, is clear from his allusions to Euclid, Conon and Nicoteles. The generality of treatment is indeed remarkable; he gives as the fundamental property of ...

... . trans. G. G. Berry, Lond., 1905); G. I. Allman, Greek Geometry from Tholes to Euclid (1889); Florian Cajori, History oj Mathematics (New York, 1894) ; M. Cantor, Gesch. d. gr. Math. [1894 foil.). The mathematical fragments are collected by Fr. Blass, Melange ...

... among the mathematicians of his age; a recent critic even describes him as the Euclid of the i yth century. In general, however, since his death his reputation has been steadily on the wane. Contemporaries admired him chiefly as a master of close and serried ...

... lue or green, though sometimes the mineral is colourless. When cut it resembles EUCLID certain kinds of beryl (aquamarine) and topaz, from which it may be distinguished by its specific gravity (3-1). Its hardness (7-5) is rather less than that of topaz. Eudase ...