BIOLOG 



325 



this field are pointing the way to synthetic considerations 

 of far-reaching significance. 



That biologists recognize the need of new light in the 

 theory of heredity and of evolution, is clearly shown by 

 the following quotations, from Bateson's Silliman lec- 



In spite ... of the "cneral attention devoted to the srtndy of varui- 



.vaitino' tAvo several elucs. 

 •ue, soniethiiij? coiui)ara])k- a 

 little prospect of penetratii 



It will he iHTcrivrd that tlu' .l.'iiinnd iiindo 1»y Bateson 

 in tlieso i)as>ages is not I'or m-w liiolo-'ical facts, but for 

 physico-chemical conceptions in tci-ms of which a chaos 

 of biological facts, already at h;in<l. can l)c cxiilained, or 



