40 
VOKKSHIKK NATIRALISTS INloN. 
That llie njiites by wliirli the wovUl has l)ec<jiue iuhahited have 
heen by way of certain definable paths, whicli during recent .i;eoh)gical 
ages liave been delimited and intinenced in their dii'ection by the 
disjxjsition of the great mountain ranges and other important physical 
features, and which are established as correctly expressing the ti'ue 
direction of the migi-atory movement by the concurrent testimony of 
many lines of investigation. 
That the over-running of other regions by the more advanced and 
dominant life of Europe and the conse«iuent destruction of their native 
organisms is established : while no plant or animal of othei" countries 
can effect a ])ermanent footing and prosper within the European 
region, but is m<ue or less speedily overcome l)y the more dominant 
and superior life by which it is .surrounded. 
That the known facts of geology hai-nioni/e with those of geo- 
graphical distribution, is shown by the forms of life now living in or 
neai- the European region being (july found fossilized in the most 
superficial deposits of the innnediate vicinity, but organisms long 
extinct or now living in inaccessible spots or in regions remote from 
the evolutionary area are restricted to the older geological formations 
while Europe is the only region where this law can be strictly and 
entirely a])plicable, and 
That man and all organized life, being equally subject to the 
operation of Natural laws, must be similarly affected by their action, 
and we cannot, therefore, hope or expect to see in the inhabitants of 
countries of feeble evolutionary power, progress and advancement 
in the future in any degree comparable with that of the peoples 
occu])ying the regions of greatest evolutionary activity. 
