38 



MICRO-ORGANISMS AND DISEASE. [CHAP. 



peritoneal exudations of animals dead for a few days. I have 

 seen in an artificial culture made by my friend Mr. A. Lingard 



'...* 



* - 



FIG. 8. MICROCOOCI OF PUTRID 

 HUMAN SPUTUM. 



1. Single micrococci and dumb-bells. 



2. Short chains. 

 3 A long chain. 

 4. A zoogloja. 



This and all subsequent figures are 

 drawn under a magnifying power of 

 about 700 diameters except stated 

 otherwise. 



Fia. 9. FROM THE SAME PUTRID 

 SPUTUM AS IN PREVIOUS FIGURE. 

 THE MICROCOCCI ARE LARGER. 



1. Dumb-bells. 



2. Sarcinse. 



3. A small zooglnea, in reality consist- 



ing of four sarciua-groups. 



from a blister in a rabbit's ear the most exquisite convolutions 

 of threads of micrococci. (See Fig. 10.) 



FIG. 10. PART OF A CONVOLUTION OF CHAINS OF MicRococcf; FROM / 

 ARTIFICIAL CULTIVATION STARTED WITH THE SERUM OF A BUSTER OF 

 RABBIT'S EAR. 



A dumb-bell is also called a diplococcus (Billroth). Between 

 the individuals of a dumb-bell there is always noticeable a 

 short pale intervening bridge. 



