192 



Table 3. The production of oildrops hy the isolated green chloro- 

 phyll corpvscles of the Sponriillidae in light. Ravel preparations of 

 living sponge tissue (pag. 12, i). Column A indicates wether the 

 chlorophyll corpuscles were in liglit (1.) or in darkness (d.) during the 

 pefiod preceding the examination; column B indicates the number 

 stated of green chlorophyll corpuscles containing an oildrop per 100 

 green corpuscles. Some less exact experimental series are left out. As 

 for the discussion, see pag. 20. 



Table 4. Cultures of iJie isolated. green and colourless chlorophyll 

 corpuscles of the Spongillidae ni various feeding media in light and 

 in darkness; their cornposltion examined hy means of microscopic 

 preparations (pag. 12, i). The manner in which these cultures were 

 obtained and kept, as well as the composition of the media, is 

 mentioned on pag. 9 — 12. 



