4i6 



BIOLOGY AXD ITS MAKERS 



the two. He was more in the public eye, but was not a man 

 of such deep intellect uaHty as Lamarck. His scientific repu- 

 tation rests mainly u])on his Philosophie Auatonnque. The 

 controversy between him and Cuvier was on the subject of 



Fig. ii8. — Geoffroy Saint-Hilaire, 1772-1844. 



unity of type; but it involved the question of the fixity or 

 mutability of species, and therefore it in\'olved the foundation 

 of the question of organic evolution. 



This debate stirred all intellectual Europe. Cuvier won 

 as being the better debater and the better manager of his 



