For four years the New York Zoological Park has maintained the only herd of musk-ox ever kept in captivity. It started in 1910 with six animals, three of which still survive.
SUPPLEMENTARY READING
A MUSK-OX
| THE AMERICAN NATURAL HISTORY | By W. T. Hornaday |
| OUR VANISHING WILD LIFE | By W. T. Hornaday |
| FOUR-FOOTED AMERICANS AND THEIR KIN | By M. Wright |
| BIG GAME OF NORTH AMERICA | By G. O. Shields |
| OUR BIG GAME | By D. W. Huntington |
⁂ Information concerning the above books and articles may be had on application to the Editor of The Mentor.