Tin OGLE FOB EXIM 37 



iiism, and are thus enabled by degrees to reach tbe 



fully atiaj'tivr l.-\.-l. Natural Mb ut* off the un- 



ala|'tril in.li\ i.lual. 'Flic j-la-li.- inli\ ilnal though Orig- 

 inally uiiadaptcil to it- jMiti-ular environim-nt, may be 

 iniuiitiiMl in Mi.-h a mann. i QlAl it MOT?!?!* n l ttl " T V 



i if those who are plastic and adaptable survive, all 

 if niir amonir it> nlT-pring pOeSOMei 

 a germinal variation whirl, h.-tt-T adapt Ihe KUF- 



ronndiiig conditions, it iFinn.-.liat.-ly has an a 

 the struggle, ami its proLT'-ny "ill inherit the favorable 

 quality. Tlir.sr ollVpriuir which possess an innat.- a<lap- 



ii will have n much b<tttr chance for longer life and 

 larg< than those which possess mere plastic 



modifiability. In thi- iring the evolution of life 



from lou ami hiirher forms, Nature has weeded 



out an-i < \i* !inin,it ,1 th<- ill-adapted organisms, tolerat- 

 ing the temporary compromise of ino.lit'u-ation until the 

 progress of reproduction shall give rise to a real ger- 

 minal variation (mutation) \vhi<-h l rings renewed stabil- 

 ity to the species. 



SUPPLKMKNTAUV UK A DINGS. 

 BOAS, P. Tk* Mind of Primitive I/an. 



. 11 K -The Doctrine of Ki-<lutio*. 

 DARWIN, C. The Origin of the Specks. 



I > \VKNPORT, C. H. //rrn/i/i/ in /M hi' 



-\ntur.il Inh.t 

 UCOTT, W. K. r* Social Direction of Human ro/M/ton 



M . Or gam 'ion. 



IYXXETT, K. C. MendeUim. 



Since modificaUoas do not term to be inhrritl. it follow* Out tfe oat? 



n. which count in U* ofnprtef art grnniwil wuifttioa*. 



MuUtion* or rtable vritit.n rr grnninal vmrUtion* and ar thrrvforv of 



-n,H>rtncB in etolution than fluctuating or UHtebb rmrUtioo. which 



arc not trnnnmittcd to offspring. 8 Mctralf. pp. 



