NOTES AND LITEILVTUKH 



ZOOLCXiV 



Weismann's Theory of Descent.' — "WIkmi a life of pleasant labor 

 Is (Irawinjr towards a cIom- ilic ^^\^h n.itnrally ii.MTt. itsolf to gather 

 together the main resuhs. nnd t.. rnw\>\ur tluMii in a woU-defined and 

 harmonious picture wliicli rn;i_v ln' Ici'i ;is .1 Ico-.icv lo succeeding gen- 



