298 GENERAL BIOLOGY 



together in a genus, but similar genera are in turn 

 assembled in families, and families in orders. The 

 genera and other larger groups were, of course, 

 artificial and abstract categories. Not so the 



FIG. 108. Carolus Linnaeus (1707-1778). 



species, in Linnaeus' mind. He says, " There are 

 as many species as the infinite Creator produced 

 in diverse form in the beginning, and these forms, 

 according to the recognized laws of reproduction, 



