"You fixed your attention on that matter years ago, hippopotamus," said Reddy, "and since then you've never turned it in any other direction."
"Grace Harlowe's Senior Year at High School or The Parting of the Ways"
Jessie Graham Flower
About the hour of the monkey a hippopotamus charged the flotilla and upset two boats.
"Witch-Doctors"
Charles Beadle
A little farther down another beast coughed violently like a hippopotamus.
"Witch-Doctors"
Charles Beadle