178 



The Unitij of the Organism 



just as certainly as though the parts had not been isolated. 

 And so we are able to see what is implied in Harrison's 

 remark quoted above, "we can never 'explain' the processes 

 of normal development with more than a reasonable degree 

 of probability until we succeed in synthesizing organisms." 

 If the condition thus placed on explanation of development 

 is really necessary, such explanation will never be forth- 

 coming, since to synthesize organisms w^ould be to synthesize 

 them endowed with their hereditary attributes and powers — 

 in otlier words, with their ancestral attributes and powers. 

 But in order to synthesize them with such attributes and 

 powers it would be necessary to synthesize not only the 

 organisms, but also their ancestors — a rather difficult task. 



REFERENCE INDEX 



('12) 



('00) 



. ('00) 



Goodrich . . I, 



249 



36 



3 



3 



1 



252 



169 



27 



8 



1. Locy 



2. Virchow .... 



3. Hertwig, O. 



4. Wilson, E. B, 



5. Wilson, E. B 



6. Locy 



7. Morgan and 



8. Driesch 



9. Hertwig, O. ('12) 



10. Briicke 386 



11. Wilson, E. B. ('00) 393 



12. Whitman 110 



13. Whitman Ill 



14. Whitman 109 



15. Whitman 119 



16. Whitman 121 



17. Whitman 120 



18. Wilson, E. B. ('93) 8 



19. Wilson, E. B. ('00) 58 



20. Wilson, E. B, ('00) 393 



21. 

 22. 

 23. 

 24. 

 25. 

 26. 

 27. 

 28. 

 29. 

 30. 

 31. 

 32. 

 33. 

 34. 

 35. 

 36. 

 37. 

 38. 

 39. 

 40. 



Wilson, 



Driesch 



Driesch 



Conklin 



Lillie, F 



Hertwig, 



Harrison 



Harrison 



Harrison 



Ebeling 



Burrows 



Burrows 



Burrows 



E. B. ('13) 



('08) .... 

 , R 



R. ('95) 



('10) ... 



('10) .. 



('12) ... 



('11) 



('11) 



('10) 



Carrel and Burrows ('12) 



Harrison ('06) 



Carrel and Burrows ('12) 

 Carrel and Burrows ('12) 



Jolly 



Dilger 



Carrel and Burrows ('11) 



821 



28 

 117 



90 

 251 



47 

 841 

 843 

 184 

 273 



72 



74 



2058 



416 



140 



298 



78 

 473 

 317 

 562 



