“Look here, youngster,” cried the captain; “Guinea Coast, eh?”

“Possibly,” said the doctor.

“Bight of Benin?”

“Maybe,” said the doctor, the short speech seeming contagious.

“Ketch the fever?”

“Probably,” said the doctor.

“Both on yer.”

“Well, sir, I shall risk that,” continued the doctor.

“Both on yer off your heads, seeing niggers. Rattling their chains.”

“Are you mad, man?” cried the doctor. “Yes.”