All the microphotographs are magnified 1000 times. 

 The preparations are, where not otherwise stated, made with Indian 

 according to the method of Burri. 

 W = Witte Peptone, C = Casein Peptone, Y = Yeast Extract. 

 AG — Alkaline sugar-free C-Gelatin. 

 SO == Neutral Dextrose C-Gelatin. 

 Agar = Neutral Dextrose C-Agar. 



