318 THE BEGINNINGS OF CAUSAL MORPHOLOGY 



future," and in 1895 he founded the famous Arc/iiv fi'tr 

 Entwicklungsmechanik^ publishing in the same year the two 

 large volumes of his collected papers,- of which the first 

 volume dealt with functional adaptation, the second with 

 experimental embryology. 



1 1 is subsequent work includes several important general 

 papers ; :! besides a number of special memoirs dealing with 

 the factors of development, and with his original subject, 

 functional adaptation. 4 



In our sketch of his views we shall have occasion to refer 

 particularly to his publications of iSSi, 1895 (the Einleitung\ 

 1902, 1905, and 1910. 



Although Roux's biological philosophy is out-and-out 

 mechanistic, he yet recognises the difficulty, even the impossi- 

 bility, of straightway reducing development to the physico- 

 chemical level. He tries to steer a course midway between 

 the simplicist conceptions of the materialists and the " meta- 

 physics " of the neo-vitalist school, which the experimental 

 study of development and regeneration soon brought into 

 being. In 1895 he writes: "The too simple mechanistic 

 conception on the one hand, and the metaphysical conception 

 on the other represent the Scylla and Charybdis, between 

 which to sail is indeed difficult, and so far by few satisfactorily 

 accomplished ; it cannot be denied that with the increase of 

 knowledge the seduction of the second has lately notably 

 increased " (p. 23). 



The ;'iii incdid adopted by Roux is the analysis of 

 development, not directly into simple physico-chemical 

 processes, but into more complex organic processes dependent 



1 The first volume contains the important Einleitung or general 

 Introduction. 



2 Gesammelte Al>Jiandl linden iibcr Entwicklungsmechanik der Or^an- 

 isinai, 2 vols., Leipzig, 1895. 



;! " Fiir unscr I'rogramm und seine Verwirklichung," A.E.M., v., 

 ])|). i-.So and 219 342, 1897. " Ueber die Selbstregulation der Lebc- 

 wesen," A.E.M.,\\\\., pp. 010-5, '9 O2 - "Die Entwicklungsmechanik, 

 ein ncuer /.urig der biologischcn Wissenschaft," Heft I. of the I'orlrii^c 

 7/ Aufstitzc iibtr Enfrwicklungsmechanik der Organistnen^ Leipzig, 1905. 

 < )ppel and Roux, u Ueber die gestaltlirhc Anpassung der Hltitgcfiisse," 

 Heft x., of the Vortra^c n. Aufsiitzc, Leipzig, 1910. 



1 " I'ebcr d. funkt. Anpassung des Muskclmagcns der Cans," A.E.Af., 

 xxi., pp. 401 -91), 1906. 



