LENSES AND SYSTEMS OF LENSES.

AND

SYSTEMS OF LENSES,

TREATED AFTER THE MANNER OF GAUSS.

BY

CHARLES PENDLEBURY, M.A., F.R.A.S.,

SENIOR MATHEMATICAL MASTER OF ST. PAUL'S;
LATE SCHOLAR OF ST. JOHN'S COLLEGE, CAMBRIDGE.

TY

CALIFORNIA,

CAMBRIDGE:

DEIGHTON, BELL AND CO.

LONDON: GEORGE BELL AND SONS.

1884.