xviii THE STUDY OF EVOLUTION 



FIG. PAGE 



9. Diagram of alteration in constitution of biophoric molecule . 89 



10. Graphic formula of the Pyrimidine ring . . . .89 



1 1. Diagram of production of multiple side-chain elements . . 90 



12. Diagram of interchange of allelomorphic side-chains between 



biophores of paternal and maternal origin . . .94 



13. The different forms of chromosomes in the human spermato- 



cyte (after Moore and Arnold) 192 



14. Cells of the salivary gland to show production and discharge 



of " plasmosomes " (after Maximow) . . . .199 



15. Aberrant mitoses (after v. Hansemann and Pianese) . . 201 



16. Diagram of constitution of protein ring . . . .207 



17. Diagram of relationship between nuclear biophores and cyto- 



plasmic proteins ........ 208 



18. Chromosomes, chromomeres and " ids " . . . . .214 



19. Diagrammatic representation of constitution of protein or 



peptone nucleus . . . . , . . . 222 



20. Diagram of growth of biophoric molecule . . . .228 



