^^i& 



PLATE V. 



Note. — -All figures uniformly magnified 1000 di., Zeiss apochroraat. lens, 1-5 mm., 

 apert. 130, Homog. Immers., Compens. Ocular 6; stained according to Moore's 

 modification of Lœffler's flagella stain, from cultures 24 hovu-s at 25° C, which 

 had been inoculated from active cultures 6 days old. 



Figs. 1 and 2. Flagellated forms of A2; clusters of flagella such as in Fig. 2 appear 

 to precede disintegration. 



Figs. 3, 4, 5, 6. Flagellated forms of A4. 



Figs. 8, 8, 9, 10, 11, 12. Flagellated forms of A3; a series selected from the same 

 smear to show production of flagellated granules (gonidia) and dissemination 

 of these by disintegration of the mother cell. 



(7) A cluster of actively growing cells, the lower one of the group producing 

 the cluster of flagella preceding disintegration. 



(8) Disintegration of mother cell in progress. 



(9) Disintegration of mother cell complete, four flagellated granules (gonidia) 

 can be seen, 



(10, 11. 12) Flagellated gonidia freely motile. '"•' ^^ 



1 1 



