PLATE II. 



A 



Note. — AU figures uniformly magnified 1000 di., Zeiss apochromat. lens, 1-5 mm., 

 apert. 130, Homog. Immers., Compens. Ocular 6. 

 All figures are from Cultures of Al. 



Fig. 1. Smear from a 24 hr. culture on Ashby's agar at 25° C, stained with satur- 

 ated alcoholic gentian violet. 



" 2 and 3. Two types of flagella on the same smear from a 24 hr. culture on 

 Ashby's agar at 25° C, stained according to Moore's modification of Lœffler's 

 flagella stain. 



" 4, 5 and 6. Smears from a culture six days old on Ashby's agar at 25° C, 

 sl\owing organisms and capsules in various stages of development, fission occur- 

 ring wilhiii the capsule iu some instances. 

 Stained with saturated alcoholic solution of Gentian \dolet. 



" 7. Smear from a culture 3 weeks old at 25° C, fully developed and pigmented, 

 showing the organisms in the restirp; stage in irregular groups that have heeu. 

 formed mostly by fission within the capsules. 

 Stained with saturafxl solution of (icntian violet. 



" 8. Smear from a culture 24 hrs. at 37° C, showing involution forms, stainea 

 with jN'eisser's blue. 



" 9. Smear from a culture 7 days dd at 37° C, showing involution forms, 

 stained with Neisser's blue. 



'■■■;. m^ . \ j^ 



