Zane Grey 
Tappan’s Burro 

Tappan gazed down upon the newly-born little burro with something of pity and consternation. It was not a vigorous offspring of the redoubtable Jennie, champion of all the numberless burros he had driven in his desert prospecting years. He could not leave it there to die. Surely it was not strong enough to follow its mother. And to kill it was beyond him.