106 EVOLUTION 



specialized. reta irj s. i^oppg nf ^]] the func- 

 tions of prntnpl^qrn and that therefore any 



(Hie of these mflV fop ]nrlp>fim'tp]y i^pppflgprl 



by favourable copfotKms^ and the 



' HTldt^i^ i&LTTiliflTi V rPfiiVVy*r > '/^ ^O ,f\< tiFfiC^- Olll* 



notion of specialization Wnmes t|ms 



witTT * 



and our idea of progress thus 

 becomes complemented and checked by the 

 possibility of degeneration, and this from 

 any stage of the ascent of life. The first 

 of these views is the neo-Darwinian; while 

 the second savours of neo-Lamarckianism; 

 but here, happily, is a case in which the 

 recent admirable eirenicon of Lloyd Morgan, 

 Osborn and Baldwin (discussed in Chapter 

 VI) may be conveniently applied. ^Accord- 

 ing to^thig^JJlP mndifi^ntifm'i nf the Jnrli- 



thpugh ^hev r jnav be. mav vet, serve as the 

 nursa a f pd sly eld ^nr[ selectjv^ 



in the same 

 direction. With this two-fold process at 

 work, in germs and in developing adults, 

 the frequent development of parasitic shoots 

 upon the tree of life becomes a less per- 

 plexing marvel. 



Another interest of this subject is the way 

 in which it invites that mrnpapson of the 



