Further Examination of the CeU-Thcorii iill 



able design, or composition; so iniieli, that is, as is distinc- 

 tive of tlie organism in this period of its life. 



Nor can we let Born's modification of tlie theory off* 

 without looking at it from another and quite different angle. 

 The larvae and portions of larvae entering into the graft 

 complexes have, he shows, no correlative influence on one 

 another, nor is there any influence of the whole on the parts, 

 and therefore the whole is a mosaic work. But how about 

 the cellular and tissue elements comj)osing the larva- and 

 parts of larvfc within the com})lex? IMay we look ui)on these 

 elements also as comparable to stones in a mosaic ])icturc.'' 

 Is not the fact that the ])()rtions of an organism entering 

 into a graft-complex maintain their specific if not individual 

 identity, peculiarly strong evidence of correlative influence 

 of the elements of these portions u{)on one another? Tlie 

 organized and organizing power of living beings hardly 

 manifests itself in any way more strikingly than in the 

 fidelity of grafts to their own kind whether in plants or 

 animals. But the very essence of organization and organ- 

 izing power is, as everybody recognizes, correlative in- 

 fluence or activity. A mosaic picture is about as near an 

 antithesis to an organization as can be found. So while 

 we may willingly grant that an organism made up of parts 

 of other organisms grafted together resembles to some ex- 

 tent a mosaic work, we nuist at the same time recognize 

 that when looked at in its real nature it not only does not 

 support, but really refutes the mosaic theory if th^it theory 

 is held to any definite and significant meaning. 



The ''Promorphologif' of Germ-Cells 



Although a critical examination of the mosaic theory 

 found it to be of exceedingly little value at its best, and 

 downright noxious at its worst, yet we were led to recognize 

 a measure of foreordination in each of the first two cells 



