THE ENCYCLOPÆDIA BRITANNICA
A DICTIONARY OF ARTS, SCIENCES, AND GENERAL LITERATURE
NINTH EDITION
VOLUME VIII
NEW YORK: CHARLES SCRIBNER’S SONS
MDCCCLXXVIII
[ All Rights reserved. ]
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THE ENCYCLOPÆDIA BRITANNICA A DICTIONARY OF ARTS, SCIENCES, AND GENERAL LITERATURE NINTH EDITION VOLUME VIII NEW YORK: CHARLES SCRIBNER’S SONS MDCCCLXXVIII [ All Rights reserved. ] | Ether, or Æther (αἰθήρ, probably from αἴθω, I burn, though Plato in his Cratylus (410, b) derives the name from its perpetual motion — ὅτι ἀεὶ θει περὶ τὸν ἀέρα ῥέων, ἀειθεῂρ δικαίως ἂν καλοιτο), a material substance of a more subtle kind than visible bodies, supposed to exist in those parts of space which are apparently empty. |