This page of the book is from "The New Student's Reference Work: Volume 3" by Chandler B. Beach, Frank Morton McMurry and others.
OPOSSUM, SHOWING YOUNG AT THE MOUTH OF THE POUCH
OPOSSUM, SHOWING YOUNG ON THE MOTHER S BACK
"PLAYING 'POSSUM." THIS ANIMAL IS ALIVE
Courtesy of Doubleday, Page & Co.