The adventure with the dog-faced baboons returned to his memory, and he placed his hand on the doctor's shoulder.
"Five Weeks in a Balloon" by Jules Verne
We encountered quite a number of dog-faced baboons.
"African Camp Fires" by Stewart Edward White
He stopped in front of the Potato Face Blind Man, Poker Face the Baboon, and Hot Dog the Tiger.
"Rootabaga Stories" by Carl Sandburg