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Micrococcus or Diplococcus pnenmonis, from pneumonic sputum, 

 various purulent secretions, healthy human saliva, etc.; spheri- 

 cal cocci, in pairs, resembling bacilli, sometimes forming short 

 chains ; in sections a clear, transparent capsule can be demon- 

 strated; stains by Gram, thus distinguishing it from Fried- 

 lander's bacUlus ; grows best between 34° and 37° C, the colonies 

 appearing as minute transparent drops. 



Streptococcus of Bonome, from cerebro-spinal meningitis. 



Streptococcus giganteus urethree (Lustgarten), from the healthy 

 human urethra ; cocci in long chains, which appear as tangled 

 masses; grows on agar as drop-like colonies, iridescent by 

 transmitted light. 



