314 J.D. Hooker, Introductory Essay to the Flora of Tasmania. | 
the local botanist, who finds the minutest differences to be he- 
reditary in a limited area, applies the argument derived from 
of living beings of every degree of complexity in structure 
Tefinement of organization 
: ind), that 
de din a renin fact (illustrative of a well-known tendency aa on eer 
as Pata or suppose it to have been enacted at a period w a: 1 
fee itions of the gicbs differed both in degree and kind from what now 
es in both cases arguing ad ignotum ab ignoto. i 
