AND CONTENTS OF THE MOUTH. 321 



c. — Dumb-bell bacteria, in couples, from the condensed nasal mucus, 

 in normal conditions, x 2500. 



d. — Diplococci with halo (pneumococci), partly coloured, x 2500. 



e. — Diplococci without halo, also partly coloured, from pulmonitic 

 sputum, X 2500. 



/. — Pneumonocci with distinct halos of acuminated shape. /', 

 Another pale one, without halo, in increase, from a pulmonitic sputum, 

 X 1750. 



g. — Large diplococcus in a halo, from pulmonitic sputum, x 2500., 



h. — Diplococci, without halo, in increase, containing internal gra- 

 nules, from pulmonitic sputum, x 2500. 



i. — Large roundish diplococcus, with halo, surrounded by very 

 minute cocci. — i', Incapsulated catenula, formed of analogical diplococci, 

 from pulmonitic sputum, x 2500. 



Fig. 5. 



Other forms of Bacilli, from a to hj with gentian violet; 



h\ ivith solution of iodine. 



a. — Bacillus of three types, partly with internal gemmules, partly 

 clear, partly opaque, from sputum of influeitr.a, x 1250. 



b. — Bacillus, partly opaque, partly clear, from saliva, x 1250. 



c. — Bacillus of four types, from saliva, x 1250. 



d. —Bacillus partially coloured, containing a transverse dumb-bell 

 bacterium (Bacillus hucccdis maximus of Miller, ?), from patina den- 

 taria, x 2500. 



e. — Spindle-like bacillus, internally granulous, from sputum of 

 bronchitis. — e', Analogical bacilli, but cylindrical, from pulmonitic 

 sputum, X 1750. 



/. — Two very slender bacilli, one mono-articulated, the other granu- 

 lous, from pulmonitic sputum, x 2500. 



g. — Very slender bacillus with three knots, from the same sputum, 

 X 2500. 



h. — Comma bacillus {Spirillum sputigenum of Miller) from pulmon- 

 itic sputum. — h', Serpentine bacillus, shaped like a spermatozoid 

 (coloured with solution of iodine), from the patina dentaria, x 2500. 



Fig. 6. 

 Tufts of LeptothriXf in normal conditio)i, from Bizzozero, x 400. 

 a.— Bundles of filaments of Leptothrix.— 6, Articulated filaments, 

 c. Spirilla from patina dentaria. 



rZ.— Tuft of Leptothrix from a concretion of the laclnymal bag. 



Fig. 7. 

 Jodococcus vaginatus, Miller, x 1100. 



