making a golden crown for the king is well known to every modern hydrostatic, as well as the pumping screw which still bears his name. Among the wild schemes of Archimedes, is his saying that, by means of his machines, he could move the earth with ease, if placed on a fixed spot near it. Many of his works are extant, especially treatises _de sphærâ et cylindro, circuli dimensio_, _de lineis spiralibus_, _de quadraturâ paraboles_, _de numero arenæ_, &c.; the best edition of which is that of David Rivaltius, folio, Paris, 1615. _Cicero_, _Tusculanæ Disputationes_, bk. 1, ch. 25; _De Natura Deorum_, bk. 2, ch. 34.――_Livy_, bk. 24, ch. 34.――_Quintilian_, bk. 1, ch. 10.――_Vitruvius_, bk. 9, ch. 3.――_Polybius_, bk. 7. ――_Plutarch_, _Marcellus_.――_Valerius Maximus_, bk. 8, ch. 7. =Archīnus=, a man who, when he was appointed to distribute new arms among the populace of Argos, raised a mercenary band, and made himself absolute. _Polyænus_, bk. 3, ch. 8.――――A rhetorician of Athens. =Archipĕlăgus=, a part of the sea where islands in great number are interspersed such as that part of the Mediterranean which lies between Greece and Asia Minor, and is generally called Mare Ægeum. =Archipŏlis=, or =Archepolis=, a soldier who conspired against Alexander with Dymnus. _Curtius_, bk. 6, ch. 7. =Archippe=, a city of the Marsi, destroyed by an earthquake, and lost in the lake of Fucinus. _Pliny_, bk. 3, ch. 19. =Archippus=, a king of Italy, from whom, perhaps, the town of Archippe received its name. _Virgil_, _Æneid_, bk. 7, li. 752.――――A philosopher of Thebes, pupil to Pythagoras.――――An archon at Athens. ――――A comic poet of Athens, of whose eight comedies only one obtained the prize.――――A philosopher in the age of Trajan. =Archītis=, a name of Venus, worshipped on mount Libanus. =Archon=, one of Alexander’s generals, who received the provinces of Babylon, at the general division after the king’s death. _Diodorus_, bk. 18.