PLANTS OF IOWA 17 



136. M. tardissimus, (Bumm). 



Found in vaginal secretions, especially those of puer- 

 peral women. 



137. M. magnus, (Kosenthal). 

 Isolated from the air. 



138. M. cerevisice, (Balcke.) 



In beer, air of breweries, water. A common cause of 

 turpidity in beer. 



139. M. conglomeratus, (Bumm). 

 From gonorrhea! pus, air, dust. 



140. M. aurantiacus, (Schroter). 

 Isolated from the air and from water. 



141. M. luteus, Cohn. 



On articles of food (boiled potatoes, etc.), forming 



yellow patches. 

 SARCINA, (Goodsir). 



142. 8. lutea, Flugge. 

 Air and water. 



143. 8. auranteaca, Flugge. 

 Air and water. 



PLANOSARCINA, (Migula 1. c.). 



144. P. mobilisj (Maurea) Migula. 

 Water. 



BACTERIACE^l FAMILY. 



BACTERIUM, Ehrenberg. 



145. B. influenzw, (Pfeiffer) Lehmann-Neumann. 

 Nasal secretions of man affected with influenza. 



146. B. aceti, (Kutz.) Lanzi. 



The quick vinegar ferment of Pasteur, living on the 

 surface of beech wood shavings in the vinegar vats, 



147. B. viscosum, Van Laer. 



Isolated from beer, yeast and bread ; causes a viscous 

 fermentation. 



148. B. cerogenes, Escherich. 

 Milk, f ogees, air, water, etc. 



