270 
MRS. G. C. FRANKLAND AND DR. P. F. FRANKLAND 
10 . Micrococcus Candicans. 
Occurrence. —This was found in the air collected on the roof of the Science Schools, 
South Kensington Museum. We believe this organism to be identical with that 
described by Flugge, loc. cit., p. 173, but he does not mention that it liquefies gelatine. 
Microscopic appearance. —Under a high power (x 1,000 or 1,500) the cocci are 
seen to be variable in size, the larger ones exhibiting a division and reaching lp in 
diameter; they are devoid of any definite arrangement. Plate 17, fig. 1, No. lc, 
represents the appearance of the cocci taken from an agar-cultivation and viewed 
with a magnifying power of 700 ; in No. lcl they are taken from a gelatine-cultivation 
and are magnified 1,000 times. 
Appearance in Cidtivations. 
Gelatine. —After four days there is a surface-depression containing an intensely 
white and opaque mass. As the cultivation becomes older, liquefaction slowly 
proceeds downwards, the liquid formed being highly glutinous and turbid. (See 
Plate 17, No. lb.) The mode of liquefaction in the case of this organism is very 
dependent upon temperature; thus in warm weather, or if the temperature is 
maintained at about 22° C., the liquefaction takes place in a long funnel, as seen in 
the Plate, whilst at a low temperature the liquefaction is mostly confined to the 
surface. 
Agar-agar .—Already in the course of three days there is a strong growth forming 
a smooth and dazzling white mass upon the surface. The brilliancy of the white 
mass, which resembles a moist patch of Chinese white, is especially characteristic. 
(See Plate 17, No. 1«.) 
Broth. —After nine days (August 7—16, 1886) the liquid is pervaded with a fine 
turbidity; there is no pellicle, hut a white deposit is found on the bottom. 
Appearance on plate-cultivation. —The colonies are milk-white and, under a low 
power (x 100), they are seen to have a smooth edge, the interior being granular; 
and, whilst the older colonies are somewhat irregular in shape, the less developed 
ones are nearly circular. (See Plate 17, No. le.) 
II.—BACILLI. 
1. Bacillus aurescens. 
2. ,, aureus. 
3. ,, citreus. 
4 ,, plicatus. 
5. ,, chlorinus. 
6. ,, polymorphic. 
7. ,, profusus. 
8. ,, pestifer. 
