290 ORIGIN OF STRUCTURES AND FUNCTIONS 



of organic polymers in the shape of polypeptides and poly- 

 nucleotides, assemblages having, as yet, no orderly arrange- 

 ment of amino acid and nucleotide residues adapted to the 

 performance of particular functions. 



These polymers were, nevertheless, able to form multi- 

 molecular systems, though these were undoubtedly in- 

 comparably simpler than living protoplasm. It is only by 

 the prolonged evolution of these systems, their interaction 

 with their environment and their natural selection that there 

 developed the forms of organisation characteristic of the 

 living body: metabolism, proteins, nucleic acids and other 

 substances with complicated and ' purposeful ' structures 

 which characterise the contemporary living organism. 



BIBLIOGRAPHY TO CHAPTER VI 



1. H. M. RouELLE. Recueil periodique d' observations de 



medecine de chirurgie et de pharmacie, 40, 59 (1773). 

 A. F. FouRCROY. Ann. Chun. (Phys.), 5, 252 (1789). 



2. G. J. Mulder. /. prakt. Cheni., 16, 129 (1839). 



M. V. Tracey {Proteins and life. London, 1948) and H. 

 Hartley {Nature, Lond., 168, 244 (1951)) cite earlier 

 Netherlands publications by Mulder using this term. 

 Hartley also gives evidence that it had been suggested 

 to Mulder by J. J. Berzelius. 



3. H. voN MoHL. Grundzilge der Anatomie und Physiologie 



der vegetahilischen Zelle. Braunschweig, 1851 ; Bot 

 2^^:^.73.89(1846). 



4. (I. 60). 



5. F. Engels. Herr Eugen Dilhring's revolution in science. 



[Anti-Diihring.] (trans. E. Burns). London, 1934 ; 

 Ludwig Feuerhach and the outcome of classical Ger- 

 man philosophy (ed. C. P. Dutt). London (Martin 

 Lawrence, undated). 



6. F. Engels. Herr Eugen Dilhring's revolution in science. 



[Anti-Diihring.] (trans. E. Burns). London, 1934. 

 7- (I- 59)- 



8. E. Pfluger. Pfliig. Arch. ges. Physiol., 10, 251 (1875). 



9. F. BoTTAzzi in Handbuch der vergleichenden Physiologie 



(ed. H. Winterstein). Vol. 1 (1st half), p. i. Jena, 

 1911. 

 10. N.N.IwANOFF. Bzoc/zem.Z., 7(52, 441 (1925). 



