PLATE..V. 
From “ Microscopical Journal.” 
Fic. 1.— Micrococcus prodigiosus (Monas prodigtosa, Ehr.). Spherical 
bacteria of the red pigment, aggregated in pairs and in fours; the other 
pigment bacteria are not distinguishable with the microscope from this 
one. 
Fie. 2. — Micrococcus vaccine. Spherical bacteria, from pock-lymph in 
a state of growth, aggregated in short four to eight-jointed straight or 
bent chains, and forming also irregular cell-masses. 
Fic. 3.— Zooglea-form of micrococcus, pellicles or mucous strata 
characterized by granule-like closely set spherules. 
Fig. 4.— Rosary chain (Torula-form) of Micrococcus uree, from the 
urine. 
Fic. 5. — Rosary-chain and yeast-like cell-masses from the white de- 
posit of a solution of sugar of milk which had become sour. 
Fic. 6. — Saccharomyces glutinis (Cryptococcus glutinis, Fersen.), a pullu- 
lating yeast which forms beautiful rose-colored patches on cooked 
potatoes. 
Fig. 7.— Sarcina spec,* from the blood of a healthy man,** from the 
surface of a hen’s egg grown over with Micrococcus luteus, forming yel- 
low patches. 
Fie. 8.— Bacterium termo, free motile form. 
Fie. 9.— Zooglewa-form of Bacterium termo. 
Fic. 10. — Bacterium-pellicle, formed by rod-shaped bacteria arranged 
one against the other in a linear fashion, from the surface of sour beer. 
Fie. 11. — Bacterium lineola, free motile form. 
Fie. 12. — Zooglea-form of B. lineola. 
Fic. 13.— Motile filamentous Bacteria, with a spherical, or elliptical 
highly refringent “ head,” perhaps developed from gonidia. 
Fie. 14. — Bacillus subtilis, short cylinders and longer, very flexible 
motile filaments, some of which are in process of division. 
Fie. 15. — Bacillus ulna, single segments and longer threads, some 
breaking up into segments. 
Fig. 16. — Vibrio rugula, single or in process of division. 
Fia. 17. —Vibrio serpens, longer or shorter threads, some dividing into 
bits, at * two threads entwined. 
Fie. 18.—“ Swarm” of V. serpens, the threads felted. 
Fig. 19. — Spirillum tenue, single and felted into “ swarms.” 
Fie. 20e== Spiril/um undula. 
Fig. 21. — Spirillum volutans,* two spirals twisted around one another. 
Fic. 22. — Spirochete plicatilis. 
All the figures were drawn by Dr. Ferdinand Cohn with the immersion 
lens No. IX. of Hartnack Ocular III., representing a magnifying power 
of 650 diameters. 
