326 EVOLUTION, OLD AND NEW. 



Isidore Geoffrey St. Hilaire tells us in a note that 

 the work referred to as first putting his father's views 

 before the public in a printed form, was a report to 

 the Academy of Sciences on a memoir by M. Roulin ; 

 but that before this report some indications of them are 

 to be found in a paper on the Gavials, published in 1825. 

 Their best rendering, however, and fullest development 

 is in several memoirs, published in succession, between 

 the years 1828 and 1837. 



" This doctrine," he continues, " is diametrically 

 opposed to that of Cuvier, and is not entirely the 

 same as Lamarck's. Geoffroy St. Hilaire refutes the 

 one, he restrains and corrects the other. Cuvier, 

 according to him, sums up against the facts, while 

 Lamarck goes further than they will bear him out. 

 Essentially however on questions of this nature he is 

 a follower of Lamarck, and took pleasure on several 

 occasions in describing himself as the disciple of his 

 illustrious confrere" * 



I have been unable to detect any substantial differ- 

 ence of opinion between Geoffroy St. Hilaire and 

 Lamarck, except that the first maintained that a line 

 must be drawn somewhere and did not draw it while 

 the latter said that no line could be drawn, and there- 

 fore drew none. Mr. Darwin is quite correct in saying 

 that Geoffroy St. Hilaire " relied chiefly on the con- 

 ditions of life, or the ' moncle ambiant,' as the cause 

 of change." But this is only Lamarck over again, 

 for though Lamarck attributes variation directly to 



* ' Vie et Doctrine Scientifique cle Geoffroy Etienne St, Hilaire,' 

 Paris, Strasbourg, 1847, pp. 344-346. 



