250 
Ward . — Thames Bacteria , III. 
Variety i. 
Fig. 27. A colony under the i as seen on isolation plate. 
Fig. 28. Plate-colonies under the a in ninety hours ; b in 115 hours. 
Variety </>. 
Fig. 29. A large colony as first isolated. Natural size. 
Fig. 30. Plate-colonies : a in 140 hours; b in ten days. 
Variety 
Fig. 31. Plate-colonies at I2-i8°C. : a in forty-two hours; b in ninety hours ; 
c in 1 15 hours; d on sixth day. In 'a, b and c the small colonies are submerged. 
In d the small colony is natural size. 
Fig. 32. From a ten-days’ plate at ordinary temperature : a submerged under 
b emerging (natural size) ; c the same under 
Fig. 33. From a six-days’ plate : a submerged under ^ ; b emerged, natural size. 
Variety 
Fig. 34. A plate-colony as isolated. 
Variety 6 . 
Fig* 35- A two-days’ plate-colony. Natural size. 
Group VII. The Yellow Proteus Type. 
Number 23. 
Fig. 36. Plate-colonies of No. 23 on a five-days’ culture at I2-I5°C., showing 
the great variety in type : a, c, d natural size ; b part of the tenuous margin of 
a under the 
Fig. 37. Plate-colonies at 20° C : a two of the very tenuous colonies after two 
days ; b one of them under the ^ ; c colonies on the third day, natural size ; d part 
of the margin of a colony; e one of the strands in d more highly magnified. 
Fig. 38. Plate-colonies on third day under a lens to show structure, at 2o°C. 
Fig. 39. Culture in five per cent, gelatine-drop, ^imm, ; a at 9.20; b at 11.0 ; 
c at 11.50; d at 12.30; eat 5.0; f at 10 p.m. The rods feebly motile. Seep. 227. 
PLATE XIV. 
Fig. 40. Swarming islets drawn at intervals of one minute, in five per cent, 
gelatine ; order = a-g. 
Fig. 41. Stab-cultures of No. 23 at i8-2i°C. : a in forty-eight hours; b in a 
week. 
Fig. 42. Plate-colonies from a nine-days’ culture after lying dormant a year: 
a natural size ; b under A. 
Number 7. 
Fig. 43. Plate-colonies of No. 7 on the fourth day at 18-20° C. : a natural size ; 
b one of the outlying groups under the 
Fig. 44. Colonies from a forty-eight-hours’ culture-plate under the 
Fig. 45. Stab-culture four days at ordinary temperature. 
