416 



CHARLES SLATER. 



DESCRIPTION OF PLATE XXXI, 



Illustrating Mr. Charles Slater^s paper " On a Red Pigment- 

 forming Organism, B. corallinus.^^ 



Fig. 1. — Organism unstained. 



Fig. 2. — Organism stained alkaline methylene blue. 



Fig. 3. — Organism stained logwood, showing apparent spore-like bodies. 



Fig. 4. — («) Stages indicating direct division, {b) Forms possibly due to 

 karyokinesis. 



Fig. 5. — Budding and branched forms occurring in liquid media. 



Fig. 6. — Vacuolated forms unstained. 



Fig. 7. — Involution forms — torula-like forms. 



Fig. 8. — Organism from fluid, sugar-containing medium ; stained. 



Fig. 9. — Organism growing in gelatine medium. 



Fig. 10. — The same colonies twenty-four hours later, showing growth and 

 cell division. 



Figs. 9 and 10 are not so highly magnified as the others. 



Fig. 11. — Potato culture. 



