L though not a seafaring, a commercial people. Carriers of - - - make voy- - - SECTION XIII.-Pages 246-360. ANALOGY BETWEEN CHRISTIANITY AND MAHOMETANISM, IN LITERATURE. Industry and commerce parents of science and civilization. tecture - never effected conquests without founding cities. Archi- - accompany S. Louis into East -on their return erect Holy - - - - Source of all their mental advances. Arabs imparted to West previous knowledge of Greeks-improved by Arithmetical notation — cyphers of Saracenic derivation passage of into Europe. Algebra. Its in- vention by Arabs probable-its first application certain. Their algebraic discoveries. Moderns excel ancients in mathematical sciences. our debt to Spanish Saracens. Astronomy. Peculiarly the science of the East. Ara- bians eminent in- correct and improve on Greeks. Al- batagnus-worthy precursor of Newton. Saracens dis- cern defectiveness of Ptolemaic system. Transit of astronomy into Christian West. Roger Bacon pupil of Arabs- emendator of Kalendar anticipator of Co- pernicansystem. Optics. Arabs first restorers of. Al Hazen -immediate successor of Ptolemy-though at an interval his great optical discoveries followed by Roger Bacon-glasses - theory of the telescope — - - - - - - - - - able foundations for sick religious societies for their - - - - - Aristotle their chosen preceptor in ethics. Practical - - - - seventy opened in cities of Andalusia. These found- |