174 THE IMAfORTALITY OF ANIMALS 



In comparative psychology we are met with still 

 more interesting phenomena. 



The intelligence of lower animals is a profound 

 mystery to us. We do not know what they think, 

 nor the extent of their thoughts, but I am positive 

 they have much more intelligence than is usually 

 attributed to them, and that the germ of every hu- 

 man faculty exists in some form and in some species 

 of animals. As one man does not possess all the fac- 

 ulties which the mind is capable of possessing, so it 

 is with the faculty of any one of the lower animals, 

 but in the aggregate they possess every incipient 

 principle of every known faculty in man. It is a 

 matter of fact that the size of the brain does not de- 

 termine the power of the intellect, neither in man nor 

 in lower animals. The whale, elephant, and many 

 other animals have larger brains than man. And 

 in the proportion of brain weight to body weight 

 there are many lower animals which have larger 

 brains in proportion to the weight of the body than 

 man. The proportions of man represent one-fif- 

 tieth, while he is surpassed by some species of ape 

 which vary from one-twenty-eighth to one-thir- 

 teenth, and some species of bird which range from 

 one-twenty-seventh to one-twelfth. 



