CHAP. THIRTY-EIGHTH.
A Rapid Passage.—Prudent Resolves.—Caravans in Sight.—Incessant
Rains.—Goa.—The Niger.—Golberry, Geoffroy, and Gray.—Mungo
Park.—Laing.—René Caillié.—Clapperton.—John and Richard Lander
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