52 HOMO V. DARWIK. 



doctrine of typical forms ; but I do not see how Natural 

 Selection can have robbed them of the third eyelid, sup- 

 posing they had ancient progenitors who possessed it. 



Lord C. No doubt, Mr. Darwin, by the exercise of a little 

 ingenuity, could give some explanation of this point. 



Homo. Imagination, my Lord, is a great power with Mr. 

 Darwin, but very probably he would say — "With respect 

 to the causes (^of the loss of the third eyelid by the mam- 

 malia) we are in all cases very ignorant." 



Darwin. " The sense of smell," my Lord, " is of the 

 highest importance to the greater number of mammals — 

 to some, as the ruminants, in warning them of danger ; to 

 others, as the carnivora, in finding their prey ; to others, 

 as the wild boar, for both purposes combined. But the 

 sense of smell is of extremely slight service, if any, even to 

 savages, in whom it is generally more highly developed 

 than in the civilized races. It does not warn them of 

 danger, nor guide them to their food ; nor does it prevent 

 the Esquimaux from sleeping in the most foetid atmosphere, 

 nor many savages from eating half-putrid meat. Those 

 who believe in the principle of gradual evolution will not 

 readily admit that this sense, in its present state, was 

 originally acquired by man, as he now exists. No doubt 

 he inherits the power in an enfeebled, and so far rudi- 

 mentary condition, from some early progenitor, to whom it 

 was highly serviceable, and by whom it was continually 

 used. "We can thus, perhaps, understand how it is, as Dr. 

 Maudsley has truly remarked, that the sense of smell in 

 man ' is singularly effective in recalling vividly the ideas 

 and images of forgotten scenes and places;' for we see in 

 those animals which have this sense highly developed, such 

 as dogs and horses, that old recollections of persons and 



