Note 76 — PRINCE AHMAD AND THE FAIRY PERI-BANU.[63]

The origin of the lens and its applied use to the telescope and the microscope are “lost” (as the Castle-guides of Edinburgh say) “in the glooms of antiquity.” Well ground glasses have been discovered amongst the finds of Egypt and Assyria: indeed much of the finer work of the primeval artists could not have been done without such aid. In Europe the “spy-glass” appears first in the Opus Majus of the learned Roger Bacon (circa A.D. 1270); and his “optic tube” (whence his saying “all things are known by perspective”), chiefly contributed to make his wide-spread fame as a wizard. The telescope was popularised by Galileo who (as mostly happens) carried off and still keeps, amongst the vulgar, all the honours of invention. Some “Illustrators” of The Nights confound this “Nazzárah,” the Pers. “Dúr-bín,” or far-seer, with the “Magic Mirror,” a speculum which according to Gower was set up in Rome by Virgilius the Magician; hence the Mirror of Glass in the Squire’s tale; Merlin’s glassie Mirror of Spenser (F. Q. ii. 24); the mirror in the head of the monstrous fowl which forecast the Spanish invasion to the Mexicans; the glass which in the hands of Cornelius Agrippa (A.D. 1520) showed to the Earl of Surrey fair Geraldine “sick in her bed;” to the globe of glass in The Lusiads; Dr. Dee’s show-stone, a bit of cannel-coal; and lastly the zinc and copper disk of the absurdly called “electro-biologist.” I have noticed this matter at some length in various places.