33^ 



BIOLOGY AXD ITS MAKERS 



Agassiz visited Paris, Cuvier placed his collections at Agassiz's 

 disposal, together with numerous drawings of fossil fishes. 

 The profusely illustrated monograph of Agassiz on the fossil 

 fishes (1833- 1 844) began to appear in 1833, the year after 



Fig. 99. — Louis Agassiz, 1807-1873. 



Cuvier's death, and was carried on eleven years before it was 

 completed. 



Agassiz, with his extensive knowledge of the developmen- 

 tal stages of animals, came to see a marked parallelism 

 between the stages in development of the em])ryo and the 

 successive forms in the geological series. This remarkable 

 parallelism between the fossil forms of life and the stages 



