210 
Amoebae 
Serial 
No. 
Date 
Conditions of experiment 
Presence of 
amoebae 
Eemarks 
1 
12th Aug./lO 
Uninoculated Petri plate left out on 
-f 18th Aug./lO 
Cystsof types(a)&(6). 
2 
12th Aug. 
laboratory table without preliminary 
exposure to air 
Same as above 
- up to 5th Sept. 
Medium overgrown 
3 
12th Aug. 
Uninoculated Petri plate left out on 
- up to 5th Sept. 
by moulds. 
n 5» M 
4 
18th Aug. 
laboratory table without preliminary 
exposure to air 
Plate first opened exposed to the air 
-up to 11th Sept. 
n 
5 
18th Aug. 
for 5 minutes then left out on labora¬ 
tory table as before 
Similar to above but preliminary ex¬ 
- up to 5th Sept. 
5» »» »» 
6 
18th Aug. 
posure to air 10 minutes 
Similar to above but preliminary ex¬ 
- up to 5th Sept. 
»» 
7 
18th Aug. 
posure to air 20 minutes 
Similar to above but preliminary ex¬ 
- up to 5th Sept. 
If ff ff 
8 
18th Aug. 
posure to air 30 minutes 
Similar to above but preliminary ex¬ 
- up to 5th Sept. 
fi ff ff 
9 
18th Aug. 
posure to air 1 hour 
Similar to above but preliminary ex¬ 
-f 22nd Aug. 
10 
18th Aug. 
posure to air 1| hours 
Similar to above but preliminary ex¬ 
- up to 5th Sept. 
Medium dried up. 
11 
18th Aug. 
posure to air 2 hours 
Plate left out on window-siU of Hos¬ 
- up to 9th Sept. 
Medium overgrown 
12 
18th Aug. 
pital Dysentery Ward without pre¬ 
liminary exposure to air 
Similar to above 
- up to 6th Sept. 
by moulds. 
n n 
13 
18th Aug. 
Plate left out on window-sill of Hos¬ 
-t- 23rd Aug. 
Cysts of types (a)&(b). 
14 
18th Aug. 
pital General Ward without jDre- 
liminary exposure to air 
Similar to above 
-f 28th Aug. 
n n 
15 
18th Aug. 
Plate left out on table of Hospital 
-f 22nd Aug. 
ff ff 
16 
18th Aug. 
Office without preliminary exposure 
to air 
Plate left out on floor of “ Post 
- up to 11th Sept. 
Medium overgrown 
17 
18th Aug. 
Dysenteric Gang” Ward without 
preliminary exposure to air 
Plate left out on floor of No. 1 Jail 
-f 30th Aug. 
by moulds. 
Cystsof types{a)&(5). 
18 
18th Aug. 
ward without preliminary exposure 
to air 
Plate left out in central tower of Jail 
- up to 9th Sept. 
Medium dried up. 
19 
18th Aug. 
without preliminary exposure to air 
Plate left out on window-ledge of 
- up to 6th Sept. 
Medium overgrown 
tank room without preliminary ex¬ 
posure to air 
by moulds. 
