THE BEGINNINGS OF LIFE. 



187 



constitute so many foci, and as a result of changes 

 subsequently occurring around these granule-heaps the 

 separate spores result. 



Another most striking instance of the new origina- 

 tion of cells within the tissues of plants, has been 

 revealed by the researches of Mr. H. J. Carter on 

 changes taking place within the internodes of different 

 members of the family Cbaraceg 1 . He principally 

 examined specimens belonging to the genus Nitella^ 



a 



a 



OO 





FIG. 9. 

 Development of new cells in internodes of Chara. (Carter.) 



a. Natural arrangement of chlorophyll vesicles. 

 6. Commencing rearrangement of these. 



c. Aggregation into distinct masses. 



d. Assumption of cell form. 



which were to be found in the ponds at Bombay. 

 In order to make his description clear, the reader 



1 ' Observations on the Development of Gonidia from the Cell-con- 

 tents of the Cbaracece; by H. J. Carter, F.R.S., ' Annals of Nat Hist.' 

 July 1855. 



