OF

MODERN GEOGRAPHY

MATHEMATICAL. PHYSICAL, AND POLITICAL

ON A NEW PLAN

EMBRACING A COMPLETE DEVELOPMENT OF THE RIVER
SYSTEMS OF THE GLOBE

BY THE

REV. ALEX. MACKAY, LL.D. F.R.G.S.

AUTHOR OF

FACTS AND DATES;' 'ELEMENTS OF MODERN GEOGRAPHY ;' 'OUTLINES OF
MODERN GEOGRAPHY;' 'FIRST STEPS IN GEOGRAPHY,' ETC.