PSYCHOLOGICAL AND ETHICAL ASPECTS. 



251 



from regarding even maternal care as altogether disinterested. In all 

 such cases, our interpretations risk an undue materialism on the one 

 hand, and an undue transcendentalism on the other; and while our 



Fig. 96. — A Sea-cucumber, or Holothurian yCiicitmaria crocea), with numerous young attached to the 

 skin. — From Carus Sterne, after "Challenger" Narrative. 



modern temper may habitually incline us to the former, we must not be 

 too fond of taking for granted that all the common sense is on that 

 side, for we must remember that the course of evolution not only has 

 been, but must be toward the other. 



Among animals low down in the organic series there often occurs, 

 as we have already noticed, a close association between mother and 



