2OO UNIVERSITY OF MISSOURI BULLETIN 



the realm of more exact control of its phenomena, we may 

 hope that its conclusions may become the more forceful because 

 of their removal from the things of opinion to those of demon- 

 strable fact and that we shall be heard upon a subject like 

 heredity, not for our much speaking, but because we can bring 

 forth evidence and results which no man can deny. 



CONCLUSION 



In conclusion: I have tried to show how zoology is just 

 entering upon a new stage in its history, and one in which 

 the problems, though they tax our understanding more than 

 ever before, will undoubtedly yield a richer harvest of usable 

 knowledge than has yet been gathered among us. It will not, 

 I hope, seem presumptuous, since this has not yet been 

 attempted in any previous lecture of this series and since 

 human problems are to the zoologist but those of the most 

 interesting of the animal species, if I for a moment address 

 those of this audience whose purpose in life is as yet un- 

 settled and whose calling is undetermined upon the relation of 

 the investigator in this or any other science to human affairs 

 and human welfare. 



To the man who is, if we may borrow a phrase from 

 the group of sciences last mentioned, "properly socialized," 

 the relation of his life work to human progress is a considera- 

 tion of compelling force. It is a force of this kind which is 

 as likely to be the moving one with the scientific investigator 

 as the joy of problem solving; for the smallness of the 

 individual's contribution, be it honest, does not deny him the 

 satisfaction of knowing at the end that he also served and that 

 only by an incredible multiplicity of endeavor, often directed 

 along lines of no seeming value, can the long reaches forward 

 be accomplished. The failure of cultured men and women 

 to appreciate the need of abstract and seemingly useless in- 

 vestigations in the natural sciences is a lamentable spectacle, 



