44 Synopsis of the Bacteria and Yeast Fungi. 



•.^^ff\f\f*J\JV\^^^\^^''\f\f\^\^\fy^^v^ 



only distinguished by the fact that the threads are pointed 



at both ends. (Fig. 40.) 



In the blood of persons 

 suffering iro\afebris recurrens, 

 and probably the cause of the 

 disease. 



The threads of S. Obermeieri are 

 either extended in a straight line, 

 and wound in regular spirals, or 

 else they bend themselves, moving 

 with extreme rapidity in the most 

 varied fashion, so that the spirals 

 appear of unequal size, especially 

 at the most strongly bent places. 

 This species is found in the blood 

 of those suffering from intermittent 

 after a photograph by Koch ; (^, after fever, and in fact only during the 

 Weigert). In rf the blood eorpuscles ,ej,„„; f^^g, i^ds, or for a 



are represented ; the bent threads , . =• , ^, _ , . 



show the form assumed shortly before short time thereafter. In the ra- 

 the cessation of the fever, tervals of freedom from fever they 



disappear. 

 [It is a question whether this be not the same as the preceding 

 species, merely transplanted into a different habitat. — Tr.] 



Fig. 40. — Spirocheeta Obermeieri (tf, 



/ 



63. S. Cohnii, Winter ("Pilze," i. p. 61, 1884). 

 \SpirochcBte denticola, Arndt.] 

 \S. dentium, Miller.] 

 Yery similar to both the foregoing species, but always 

 shorter, and for the most part more 

 slender, than S. Obermeieri, and besides, 

 like that, pointed at both ends. (Fig. 41.) 

 In the slime of the teeth ; discovered 

 by Cohn ; figured by Koch (" Beitrage 

 zur Biologie," vol. ii. pt. 3, pi. xiv. fig. 8). 

 [Miller has shown that this is articulated, 

 \ikt S. plicatilis.'] 



\ V?^ 



X 



Fig. 41. — SpirochcBta 

 Cohnii (after Koch). 



