Ward . — Thames Bacteria , III. 
249 
Number 34. 
Fig. 8. Plate-colonies at the ordinary temperatures (1 5-1 8° C.) : a in ninety hours, 
b in 1 1 5 hours, under the In both cases the smaller colonies are submerged. 
Fig. 9. The same in sixteen days, at beginning of liquefaction. 
Fig. 10. Stab-cultures at I5-i8°C., fourteen days. 
Fig. 11. Plate-colonies of strong cultures at 20°C. : a on the second day ; b on 
the third day ; both under natural size, c and d two of the colonies on the 
fifth day, under the 
Number 51. 
Fig. 12. Colonies of No. 51 in forty-eight hours : a natural size, showing the 
almost invisible tenuous film b and c under the ^ ; in b the surrounding film was 
too tenuous to see ; in c only part of the margin is shown. 
Fig. 13. A plate-colony of the largest size on the second day at 20° C. Natural 
size ; the tenuous film just visible. 
Fig. 14. A stab-culture after a week at 18 0 C. 
Fig. 15. A stab-culture, more vigorous, after three days at 18 0 C. 
Fig. 16. Successive divisions of a rodlet isolated in gelatine : a at 11.5 a.m.; 
b 11.50 ; c 1.0 p.m. ; d 1.50 ; e 2.40 ; f 3.30 ; g 6.15. (See text, p. 206.) 
Fig. 17. Outlines of the pseudopodial films from a two-days’ plate at I9°C. : 
a to e drawn at intervals of one minute. Under 
Fig. 18. Similar series at intervals of \ to one minute, 
Fig. 19. Similar series : a at 8.4 ; b at 8.8 ; c at 8.9 ; d at 8.10, 
PLATE XIII. 
Fig. 20. Similar series : a at 8.20; a to h at intervals of one minute ; / at 8.39 ; 
the rest at intervals of a minute. The arrows mark the direction of rotation, 
Fig. 21. Culture under E/4 in a hanging drop of gelatine, at 16-2 1° C. : a the 
isolated rodlet at 11a.m. ; b progeny at 4 p.m. ; c at 8 p.m.; d. at 9.30. The 
resulting colony measured 10x8//. At 11.10 it measured 12x10//; at 8a.m. 
next day 34x32//; at 9.30 it was a sphere 36 // diameter; at 10.55 = 44//, 
and so on. See text, p. 21 1. At 3.30 it was a sphere too large to measure, and 
e, f g show the further changes under the ^ ; e 3.30 ; f 6 p.m. ; g 8.40 p.m. 
Fig. 22. Details of movement of the filaments : a-c under /-j imm. ; d under 
E/4. 
Fig. 23. Rods, filaments and zoogloea-clumps from advanced liquefying colony, 
^ imm. 
Number 9. 
Fig. 24. Plate-colonies of No. 9 at I5-i8°C. : a on the third day under £; 
b on fourth day, natural size ; c the same under ^ ; d on the fifth day, natural size. 
Fig. 25. Stab-cultures at I5-i8°C. : a in forty-eight hours; b on the fifth day; 
c on eleventh day. 
Fig. 26. No. 9 a. Plate-colonies as isolated: a in ninety hours, submerged 
under b in 115 hours, natural size ; c the same magnified. 
