PRODUCED BY MENTAL CAUSES. 275 



is so to an animal that lias performed a long, weary journey, 

 destitute of food, and exposed to all weathers, before it sees 

 once more the master whom it loved and longed for so much. 

 Hence the occurrence every now and then of dogs reaching 

 their masters, mistresses, and homes only to see them for a 

 moment and die of a consuming joy (Cobbe, Watson). Not 

 only does the pregnant bitch sometimes lose her own life 

 from joy, but the same exuberant emotion produces abortion 

 causes the loss of her whole litter of puppies (Cobbe). 



T 2 



