THE

DIFFERENTIAL CALCULUS.

PRINTED BY

SPOTTISWOODE AND CO., NEW-STREET SQUARE

LONDON

AUTHOR OF

BY

Thony
RICHARD A PROCTOR,

CHANCE AND LUCK,' 'FIRST STEPS IN GEOMETRY,'
'THE GEOMETRY OF CYCLOIDS,' AND THE ARTICLES ON
ASTRONOMY IN THE ENCYCLOPÆDIA BRITANNICA'

LONGMANS, GREEN, AND CO.

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1889.

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