Fig. 1. 
Pig. 2. 
Fig. 3. 
Fourth sub-cultures on glycerine agar-ajar, nearly ten 
months old, from human tubercular sputum. Inocu- 
lated April 17, 1890. (From photographs.) 
Fig. 5. 
Another sub-culture ou glyce- 
rine agar-agar of the same age 
and source as Figs. 1 and 2. 
Fig. 6. 
J'ifth sub-culture on Klycerilic 
agar-agar more tlian six 
monthii old. Inoculated 
July 22, 1890. 
Sixth suliculture, from tlic 
same source, more than 
three months olil. Inocu- 
lated October 15, 1890. 
(From photographs.) 
Fiightli suli-culturo nearly two 
monlhs old. Inoculated De- 
cember 8, 1890. (From photq. 
graphs.) 
