EUCLID

THE ELEMENTS

DUBLIN: HODGES, FIGGIS, & CO.
LONDON: LONGMANS & CO.
THE FIRST SIX BOOKS OF THE
ELEMENTS OF EUCLID,

AND
PROPOSITIONS I.-XXI. OF BOOK XI.,

AND AN
APPENDIX ON THE CYLINDER, SPHERE, CONE, ETC.,

WITH
COPIOUS ANNOTATIONS AND NUMEROUS EXERCISES.

BY
JOHN CASEY, LL. D., F. R. S.,
FELLOW OF THE ROYAL UNIVERSITY OF IRELAND;
MEMBER OF COUNCIL, ROYAL IRISH ACADEMY;
MEMBER OF THE MATHEMATICAL SOCIETIES OF LONDON AND FRANCE;
AND PROFESSOR OF THE HIGHER MATHEMATICS AND OF
MATHEMATICAL PHYSICS IN THE CATHOLIC UNIVERSITY OF IRELAND.
THIRD EDITION, REVISED AND ENLARGED.
DUBLIN: HODGES, FIGGIS, & CO., GRAFTON-ST.
LONDON: LONGMANS, GREEN, & CO. 1885.

DUBLIN
PRINTED AT THE UNIVERSITY PRESS,
BY PONSONBY AND WELDRICKEl

Ectronically Published by the The Kolbe Foundation

Michael S. M. Marzak

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