of the Endosperm during Germination. 457 



Fig. 15. A piece of a partially attacked endosperm wall more highly 

 magnified, shewing groups of ' connecting threads,' the 

 crenulated edge (x) of the unaltered wall shews the method 

 of ferment action. Mag. 750. 



Fig. 16. 'Connecting threads' in the unpitted cell walls of the 

 endosperm, at (y) the wall is seen to possess a shallow 

 pit on one side only. Mag. 750. 



Fig. 17. A small piece of cell wall in process of disorganization 

 shewing two groups of threads. In one case the ferment 

 has bored out a single thread x. Cf. fig. 15. Mag. 750. 



♦Fig. 18. A piece of the wall of an endosperm cell in surface view, 

 shewing that the connecting threads, which together form 

 a large group, are arranged in little groups of twos or 

 threes each in a slight pit. Mag. 1000. 



Fig. 19. The action of the ferment on the wall in surface view, 

 shewing small areas undergoing change, cf. with fig. 18. 

 Mag. 1000. 



Fig. 20. A more advanced stage of ferment action, the small areas 

 have become merged together with the spread of the 

 sphere of action of the ferment, only a skeletal framework 

 of unaltered wall being left. Mag. 1000. 



