Corisco, 
2 55 
forty miles from north to south by half that 
depth, and its position causes the rains, which are 
synchronous with those of the Gaboon, to be 
much more copious and continuous. They last 
nine months out of twelve, and in March, 1862, 
the fall was 25 inches, the heaviest remembered : 
TADI' NZAZHI, THE “ LIGHTNING ROCK.” 
it had filled the little island valleys, and made 
the paths lines of canal. 
Next morning we were visited by the Rev. Mr. 
Mackey, the senior of the eight white men who 
inhabit this piece of land—a proper site for Robin¬ 
son Crusoe—where, as the Yankee said of Great 
Britain, you can hardly stretch yourself without 
fear of falling overboard. He kindly undertook 
to be our guide over the interior, and we landed 
