1890.] RAFTER AND MALLORY—ENDEMIC OF TYPHOID FEVER. 75 
Plate 3. Vo liquefying colonies. 
611 non-liquefying culonies, 
Saucers about the same as the plates. 
The pipette used measured twenty drops to the c.c., and the water therefore 
contained an average of 6000 colonies to the c. c. 
(Note. There were no liquefying colonies—most of the colonies appear to be the 
same.) 
There were eighteen gelatine needle-cultures made. 
November 21, examination of these needle cultures showed that one was 
sterile, one was a prominent white raised colony, and eighteen were micrococci. 
(All but one of these last were macroscopically and microscopically the same 
organism. ) 
WATER FF—(Steven Norton driven well.) . 
Plates 1, 2 and 3. Jo liquefying colonies. 
About 50 large white colonies in each plate. 
About 5,000 small white colonies in each 
plate. _Apparently a very large number of 
the same species. 
The pipette used measured 24 drops to the c. c., and the water therefore contained 
about 60.000 colonies to the c. c. 
Four gelatine needle cultures were made, but the colonies were so numerous 
that an exact isolation of the single colonies was not possible. Two of the needle 
cultures were made by passing the needle through a mass of many colonies. 
Examination of the needle-cultures showed micrococci in all,—there was 
no apparent difference in the macroscopic or microscopic appearances of the 
four cultures. 
WaTER DD.—(Hendershot well.) 
Nov. 15.—Saucer (5 drops), 17 liquefying colonies. 
50 non-liquefying colonies. 
Saucer (10 drops), 32 liquefying colonies. 
67 non-liquefying colonies. 
Plate 1.—g liquefying colonies. 
12 non-liquefying colonies. 
Plate 2,—7 liquefying colonies. 
’ 11 non-liquefying colonies: 
Plate 3.—11 liquefying colonies. 
g non-liquefying colonies. 
The pipette used measured 16 drops to the c. c., and therefore the water contained 
165 colonies to the c.c. The colonies were, macroscopically, of different kinds. 
There weie seventeen gelatine needle cultures made. 
November 20, examination of the cultures showed that there were three 
presenting color formations, six green, fluorescent, and liquefying, two white, 
liquefying, and with an odor, three micrococci, and three were rods. These last 
three were planted upon sterilized potato, on Nov. 23. 
On Nov. 26, two of the potato cultures showed abundant color formation and 
growth, and were rejected. 
The third potato culture showed no color, and no macroscopic growth, but 
the surface of the potato near the needle track was moist. Microscopical examina- 
