186 DARWINISM TO-DAY. 



10 Wallace, A. R., "Are Individually Acquired Characters Inher- 

 ited?" Fortnightly Review, Vol. LIII, pp. 490-498, 1893. 



11 Weismann, A., "Uber Germinal-Selection," Verh. Internat. 

 Zool. Cong., 1896. 



12 Weismann, A., "Vortrage iiber Descendenztheorie," 2 vols., 1902. 



