R. H. THURSTON, M.A., LL.D., DR.ENG’G;
_Director of Sibley College, Cornell University_;
“_Officier de l’Instruction Publique de France_,”
_etc., etc., etc._
[Illustration: Classical laurel wreath with ribbon banner bearing Greek
text]
_SECOND, REVISED, EDITION_.
FIRST THOUSAND.
NEW YORK:
JOHN WILEY & SONS.
LONDON: CHAPMAN & HALL, LIMITED.
1897.
Copyright, 1890,
ROBERT H. THURSTON.