ON BUDDING IN ANIMALS. 21 



a free existence — it is brought on the stage in an advanced 

 condition. 



In regard to the origin of budding, it may have been inherent 

 in certain of the lower types, and in such as the Annelids may 

 have sprung from the tendency to fork, not infrequently met 

 with ; but our knowledge is yet too scanty to warrant con- 

 clusions. All that can be said is that a form which, under 

 certain circumstances, increased by buds as well as by eggs had 

 in all probability a better chance of survival than one which 

 developed from eggs only. Further, that budding is remarkably 

 adapted for the habits of many of the types mentioned, such as 

 Zoophytes, Cestodes, Annelids, and Polyzoa. 



