XII 



ILLUSTRATIONS. 

 Page. 



FIG. 136. Case for protecting Squeegee-plates 



from Dust and Scratches M9 



137. Bacterium trilnculare, Ehrenberg's first 



figure '66 



138. Bacterium triloculare, Ehrenberg's sec- 



ond figure 169 



139. Bacterium tcrnio, figured by Cohn.. . 17 



140. Dallinger and Drysdale's conception of 



Bacterium fernw I 7 



141. TVrwo-like Organism obtained by 



throwing Beans into Water 170 



Fie. 142. 

 M3. 

 144- 

 145- 

 146. 



Page. 



Iris-rhizome-rot; Crowded Agar-plate 



after 45 hours at 25 C . 179 



Iris-rhizome-rot ; Thin Sowing on Agar 



at end of 4 days; temperature 25 C.. 180 

 Bacillus aroideae grown on Agar-plate 



at 37 to 38 C 182 



Bacillus aroideae grown on Agar-plate 



at 25 C 183 



Apparatus for Gradual Substitution of 



Alcohol for Water in Tissues 184 



