2IO THE HISTORY OF CREATION. 



the female sex is alone distinguished are, for example, the 

 developed breasts, with the lactatory glands of female mam- 

 mals and the pouch of the female opossum. The bodity 

 size, also, and complexion, differs in female animals of many 

 species from that of the male. All these secondary sexual 

 qualities, like the sexual organs themselves, are transmitted 

 by the male organism only to the male, not to the female, 

 and vice versa. Contrary facts are rare exceptions to the 

 rule. 



A fourth law of transmission, which has here to be men- 

 mentioned, in a certain sense contradicts the last, and limits 

 it, viz. the law of Tnixed or mutual (amphigonous) trans- 

 mission. This law tells us that every organic individual 

 produced in a sexual way receives qualities from both 

 parents, from the father as well as from the mother. This 

 fact, that personal qualities of each of the two sexes are 

 transmitted to both male and female descendants, is very 

 important. Goethe mentions it of himself, in the beautiful 

 lines — 



" Von Vater hab ich die Statur, des Lebens emstes Fiilireii 

 Von Miitterchen die Frohnatur und Lust zu fabuliren." 



** From my father I have my stature and the serious tenour of my life. 

 From my mother a joyous nature and a turn for poetizing." 



This phenomenon, I suppose, is so well-known to all, 

 that I need not here enter upon it. It is according to the 

 different portions of their character which father and 

 mother transmit to their children, that the individual 

 differences among brothers and sisters are chiefly determined. 



The very important and interesting phenomenon of ky- 

 hridism also belongs to this law of mixed or amphigonous 



