Plate III. 
Record of Science. 
| i] 
oi ila 4 | 
ie 
ligials : 
fl | } ; 
fe We 
Gy) il iia, 
iow 
Wo i ie 
\ i. 
7a | 
Mena acl \e 
re 
; i mo 
| 
baal I 
Dp 
. 
Springs at C.C. 
Dr. Wyatt Johnston’s apparatus for collecting Samples of Water for Bacteriological Analysis. 
Reduced one-half (linear), 
