Streptococcie Mastitis. 95 



showed that out of 560 quarters 112, or 20% were affected. Forty- 

 two of these gave at times a greater, at other times a smaller secre- 

 tion with a distinctly changed consistency. The other 70 manifested 

 the infection only after sedimentation, or only through microscopi- 

 cal examination. Some of these 12 quarters were successively (see 

 above) examined, so that the material used for smears from af- 

 fected quarters, and which had been microscopically examined, 

 amounted during the period mentioned, to 134. 



Fifty-five affected quarters showed the Streptococcus brevis, 

 32 the Streptococcus longus; in 47 the infective agent was recog- 

 nized in the form of a diplococcus. The 47 quarters with diplococci 

 had as a rule a very small leucocytic number. In values of over 

 2.0, longer coccus-chains were always observed. 



32 quarters out of the 47 had . 5 :1000 leucocytes 



12 quarters out of the 47 had 1.0:1000 leucocytes 

 3 quarters out of the 47 had 2 . :1000 leucocytes 

 In the 55 cases with Streptococcus brevis the change in the 

 leucocytic number varied to a greater extent. 



In 18 it represented 0.5:1000 or 32.73%. 



In 14 it represented 1.0:1000 or 25.47%. 



In 8 it represented 2.0:1000 or 14.55%. 



In 3 it represented over 2.0:1000 or 5.45%. 



In 12 it represented 5-20 and more :1000 or 21.82%. 

 The 32 longus-cases were divided as follows : 



Leucocytic Quantity. Number of Cases. Percentage. 



Under 0.5:1000 1 3.125 



up to 1.0:1000 1 3.125 



up to 2.0:1000 3 9.375 



up to 5.0:1000 3 9.375 



up to 20.0:1000 3 9.375 



up to 100 and more:1000 21 65.625 



In other words : 



In leucocytic quantities 



Up to 0.5, 63.00% showed 35.0% brevis, 2.00% Dipl. longus 



Up to 1.0, 44.40% showed 51.9% brevis, 3.70% Dipl. longus 



Up to 2.0, 17.65% showed 64.7% brevis, 17.64% Dipl. longug 



Up to 5.0, 0.00% showed 50.0% brevis, 50.00% Dipl. longus 



Up to 20.0, and more 0.00% showed 33.0% brevis, 66.60% Dipl. longus 



The leucocytic values will be taken up again later in the dis- 

 cussion of the "Trommsdorff" test. 



From this tabulation it may be seen that the length of the 

 chains actually grows with the increase of leucocytes, or with the 

 amount of sediment. In high leucocytic values and short forms 

 of the infective agents, the latter are frequently present in exceed- 

 ingly large qantities. 



*The opinion that the form of the streptococcus represents an 

 adaptation to the energy reaction of the respective animal and or- 

 gan is thereby substantiated especially when the streptococci are 



