366 LAMARCK, HIS LIFE AND WORK 
seizing, or using them like nippers in cutting leaves 
for food, and should they only be used in chewing 
food, there is no doubt that their facial angle would 
become higher, that their muzzle would become 
shorter and shorter, and that in the end this being 
entirely effaced, their incisor teeth would become 
vertical. 
‘* Now supposing that a race of Quadrumana, as 
for example the most perfect; had acquired, by 
habits constant in every individual, the structure 
I have just described, and the power of standing 
erect and of walking upright, and that as the result 
of this it had come to dominate the other races of 
animals, we should then conceive: 
‘ 1.) Dhat this race“farther advanced in its facul- 
ties, having arrived at the stage when it lords it over 
the others, will be spread over the surface of the 
globe in every suitable place; 
** 2. That it will hunt the other higher races of 
animals and will struggle with them for preéminence 
(luz disputer les biens de la terre) and that it will force 
them to take refuge in regions which it does not 
occupy; 
‘* 3, That being injured by the great multiplica- 
tion of closely allied races, and having banished them 
into forests or other desert places, it will arrest the 
progress of improvement in their faculties, while its 
own self, the ruler of the region over which it 
spreads, will increase in population without hin- 
drance on the part of others, and, living in numer- 
ous tribes, will in succession create new needs which 
should stimulate industry and gradually render still 
more perfect its means and powers; 
“*4. (hat, finally, this’ preeminent race have 
acquired an absolute supremacy over all the others, 
there arose between it and the highest animals a 
difference and indeed a considerable interval. 
‘“ Thus the most perfect race of Quadrumana will 
