POSITION— BELA T ION SHI PS 



35 



thread bacteria do show true branching and rudimen- 

 tary fruiting bodies (Streptothrix) and appear to be a Unk 

 connecting the true bacteria and the molds. 



Fig. 7. — A thread of blue-green 



Fig. 8. — A thread of a small ,blue- 

 green algee. 



Fig. 9. — ^A thread of bacteria. Com- 

 pare with Figs. 7 and 8. 



Fig. 10. — A chain of spherical blue- 

 green algse. 



Fig. 11. — A chain of spherical 

 bacteria. 



Fig. 12. — A pair of spherical blue- 

 green algffi. 



