322 BACTERIA IN THE SPUTA 



Fig. 8. 



Tuft of Leptothrix gigantea of a sheep in natural state, from Miller, 



X 540. 



Sj)., Spirillic filaments. F., Vibrio-filaments. 



Fig. 9. 



Roots, Swellings, and a few contracted fertile Threads of Leptothrix, 

 from the patina dentaria, x 850. 



a. — Fragments of fertile filament, with two roots, in natural state 

 (haustoria, T). 



h. — Fertile filament with three roots, and a swelling at the apex, in 

 natural state. 



c. — Various forms of swelling at the apex, or small heads of young 

 filaments, with gentian violet. 



d. — A large, somewhat woody filament, ending in a small chain 

 {Leptothrix buccalis maxima of Miller), with a contraction, from which 

 springs forth, at last, a slenderer fertile filament, with gentian violet. 



Fig. 10. 



Three fructifications by Ears, isolated, ivith gentian violet, from, the 



patina dentaria, x 1250. 



a, a. — Gemmules of reserve, within the stalk. — h, Intact sporules. — 

 h ', Residual sporules on the point of dropping from the ear. 



c. — Ear grafted upon an older stalk, with knots. 



d. — Ear grafted upon a younger stalk, .also with knots. 



Fig. 11. 



Tuft of Ears seen from above, with weak methyl violet, from 



patina dentaria, x 1250. 



Fig. 12. 



Tuft of Ears seen in profile with weak f uchsine, from 

 patina dentaria, x 850. 



Fig. 13. 



Two Ears jutting out from a tiny island of materia alba, with 

 unacidulated solution of iodine, x 1250. 



Fig. 14. 



Productions by points (pseudo inflorescences), in natural state, 



from patina dentaria. 



a. — Branched pseudo-inflorescence, bearing small spindle-like bacilli 

 (male organs, ?), x 690. 



b. — Isolated pseudo inflorescence, bearing analogical bacilli, x 690. 



c. — Fragment of pseudo inflorescence, bearing spindle-like and 

 comma bacilli together (male organs, ?), x 690. 



