EXPLANATIONS AND REFERENCES, 

 PLATE CLXVII. 



PAGE. 

 Fig. 1. EREMOSPHAEREA VIRIDIS, a cell in normal condition shedding 



its membranous envelope, . '-00 



' 2. '' a cell dividing, . . . 200 



Figs. 3, 4. ' '' a cell dividing into eight sister cells, 200 



Fig. 5-11. '' " different conditions of cell nmltipli- 



cadon. forming of gonidia, resting 

 spores, etc., .... 200 



