LOWEST ORGANISMS. 



Fig. i. 



CO 



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<b<? 8 % 

 <*> co 



O o e 



e 



CM) , * 1 







8 <9 



<? a a? 



8 



Fig. 2. 



Fig. i. The simplest forms of Lite Bacteria, Torula, ire. 

 Fig. 2. Bacteria, Pibriones, and Leptothrix filaments. 

 (X 800 diameters.) 



