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 would be to synthesize 

 them endowed with their hereditary attributes and powers — 

 in other 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 



1. 



2. 



3. 



4. 



5. 



6. 



7. 



8. 



9. 

 10. 

 11. 

 19. 

 13. 

 14. 

 15. 

 16. 

 17. 

 18. 

 19. 

 20. 



Locy . . 

 Virchow 



249 

 36 



Hertwig, O. ('12) 3 



Wilson, E. B. ('00) 3 



Wilson, E. B. ('00) 1 



Eocy 252 



Morgan and Goodrich. , I, 169 



Driesch 27 



Hertwig, O. ('12) 8 



Briicke 386 



Wilson, E. B. ('00) 393 



Whitman 110 



Whitman Ill 



Whitman 109 



Whitman 119 



Whitman 121 



Whitman 120 



Wilson, E. B. ('93) 8 



Wilson, E. B. ('00) 58 



Wilson, E. B. ('00) 393 



21 



.^ J. • 



oo 



23. 

 24. 

 25. 

 26. 

 27. 

 28. 

 29. 

 30. 

 31. 

 32. 

 33. 

 34. 

 35. 

 36. 

 37. 

 38. 

 39. 

 40. 



Wilson, E 

 Driesch . 



Driesch 



Conklin ('08) 



Lillie, F. R.. 



Hertwig, 



Harrison 



Harrison 



Harrison 



Ebeling 



Burrows 



Burrows 



Burrows 



B. ('13) 



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 



