Euchroite

( Min.) An arseniate of copper, of a beautiful, emerald-green color. Euchymy, (уй'ке-те,) n. [From Gr. eu, well, and chymos, juice.] ( Med .) A good state of the humerus. Eu'clase, n. [Gr. eu , well, and klao , to break.] ( Min .) A silicate of alumina and glucina, occurring in oblique rhombic prisms of a pale-green color, a vitreous lustre, and transparent. Hardne 7.5; gravity 3-1; composition: silica 41-1, alumina 35-3, glucina 17.4, water 6.2. It receives a fine polish, but is too brittle to be cut for jewelry. Found in Peru, and with topaz in Brazil. Euclid, ( u'klid ,) of Megare, an eminent Greek philosopher, was one of the earliest disciples of So crates. After the death of his master he established a school of his own, which received the name of the Megaric School. His death took place about 424 B. c. The basis of his system was the Eleatic dogma of a one, only, universal substance or existence. Blending with this the Socratic idea of the predominance of the moral element, E. held this one real existence to be the good , though it receives various names under its special manifestations. Euclid, a celebrated mathematician, sometimes called the Father of Mathematics, B. at Alexandria about 300 B. C. We know little more of his history than that he belonged to the Platonic school of philosophy, and taught mathematics in the famous school of Alexandria, during the reign of Ptolemy Soter. Though he did not create the science of mathematics, as is sometimes represented, he made prodigious advances, especially by his rigorous method and arrangement. In this respect he has, perhaps, never been excelled, and his Elements of Geometry continue to the present day to hold their place as a text-book of that science. Euclid, in New York, a post-village of Onondaga co., abt. 11 m. N. by W. of Syracuse. Euclid, in Ohio, a post-village and township of Cuyahoga county, on Lake Erie, about 10 m. N.E. of Cleveland.