OF THE PRINCIPAL BACTERIA. 

 BACTERIA. CONTINUED. 



179 



Grows rapidly. 



Liquefying; spiny periph- 

 ery; foul odor due to 

 methylmercaptin. 



Liquefying ; yellow dots. 



Grows best at 37 C. 



Liquefying ; gray centre, 

 wreath-like border ; thick 

 layer on potato. 



In boiled milk a yellow 

 pigment is formed. 



Liquefying; opaque cen- 

 tre, yellow layer next, 

 and the periphery lobed ; 

 funnel-shaped in test- 

 tube. 



On boiled carrots a wrin- 

 kled gelatinous disk. 



A pellicle formed on sur- 

 face of milk; a heavy 

 precipitate beneath. 



On boiled egg little zoog- 

 loea. 



Resembling a globule of 

 fat ; grows well in mu- 

 cous urine. 



Albuminous decompo- 

 sition. 



Precipitates casein ; 

 forms a pellicle on 

 milk. 



Splits urea into am- 

 monii carbonas. 



Human faeces. 

 Garden-earth. 



Vaginal secretion 

 and lochial dis- 

 charges. 



Human feeces. 



Soil and dust, Lay, 

 etc. 



Boiled milk and 

 potatoes. 



Stagnant water. 



Fermenting cheese 

 and milk. 



Connected with 

 putrefaction of 

 plants. 



Putrefying plants. 



Boiled carrots. 



Fermenting milk 

 and cheese. 



Putrefying water 

 and boiled eggs. 



Vegetable infusions. 

 Stale urine. 



Bladder. 



Bienstock. 

 Liideritz. 



Bumm. 



Bienstock. 



Ehrenberg. 



Ehrenberg. 



Ehrenberg. 

 Duclaux. 



Dujardin. 



Zopf. 

 Duclaux. 



Cohn. 



Muller. 

 Miquel. 



Welcker. 





