3 
A.— Expebimbnts carried out in corked 
WITH LIQUID, 500ct»c. IN 
Flasks nearly 
EACH. 
FILLED 
Total Lead in Millierams in Solution in the 
frra'TnS 
Surfaces 
Liauid after 
Nature of Solution, 
of Lead 
per 
Litre. 
exposed 
in 
'^42 
68 
70 
138 1 
140 
168 
336 
340 
505^ 
hours 
hours 
hours 
hours |hours 
hours 
hours 
hours 
hours 
Distilled Water 
25 
0-7 
1-2 
1-5 
9» J* ••••*» 
• 4 « 4 
50 
0-7 
, , 
, , 
0-9 
1-0 
if 99 • • 4 i • . 
• 4 4 4 
60 
0-5 
0-5 
0-8 
0-8 
• • 
• • 
• • • • 
120 
0-2 
0-2 
0-4 
0-4 
Potassium Nitrate 
0132 
60 
0-5 
0-5 
0-7 
99 99 • • • . 
99 , 
120 
, , 
0-2 
, . 
0-4 
99 99 • ■ • • 
99 
240 
• 4 
0-1 
99 99 • 4 • • 
0-232 
60 
0-7 
99 J J • • • • 
0-20 
25 
0-7 
1-2 
1-6 
60 
1-0 
o • 
1-2 
1-5 
Ammonium Nitrate .... 
0-20 
25 
0-9 
1-8 
1-8 
50 
1-4 
1-5 
1-5 
Calcium Chloride 
0-132 
60 
0-4 
0-4 
0-7 
, , 
, , 
99 
120 
0-2 
0-2 
0-4 
, , 
240 
0-15 
0'20 
25 
1-3 
1-8 
3-0 
60 
, , 
4 4 
2-0 
2-5 
2-5 
0-232 
60 
0-7 
PotaWium Carbonate . . 
0-20 
25 
traces 
0-3 
.. 
0-3 
60 
0-3 
0-3 
Ammonium Sulphate . . 
0-20 
25 
0-5 
0-7 
, , 
0-7 
9t 99 
99 
60 
0-7 
0-7 
’ • 
0-7 
B. — Experiments 
CARRIED OUT IN BeAKERS 
HALF PILLED WITH 
LIQUID (SOOcbc.) 
AND 
COVERED WITH 
UNSIZED PAPER : 
DIAMETER 
OP MOUTH OP beakers 
=ll-5cm. 
Distilled Water 
25 
0-4 
0-5 
0-8 
4 4 4 4 
50 
0-4 
, - 
, , 
, * 
1-2 
1-8 
4 4 4 4 
120 
1-0 
1-0 
1-2 
1-2 
4 4 4 4 
240 
1-2 
1-2 
Potassium Nitrate 
0-132 
120 
1-0 
1-0 
1-2 
99 99 •44. 
99 
240 
1-2 
1-2 
0-20 
25 
0-4 
0-4 
0-5 
60 
0-6 
2-2 
2-5 
0-232 
120 
1-2 
Ammonium Nitrate .... 
0-20 
25 
0-4 
2-0 
4-0 
50 
0-8 
3-5 
4-0 
Calcium Chloride 
0-132 
120 
1-3 
1-3 
1-5 
240 
1-2 
0-20 
25 
1-3 
15 
2-8 
50 
2-0 
3-0 
3-5 
0-232 
120 
1-5 
Potassium Carbonate . . 
0-20 
25 
0-2 
0-3 
6-3 
50 
0-2 
0-3 
0-3 
Ammonium Sulphate . . 
0-20 
25 
0-7 
1-0 
1-3 
99 99 • • 
99 
60 
0-7 
1-0 
•• 
1-5 
C. — Experiments carried out in Basins pull 
OP LIQUID (500cbc.) 
AND covered 
WITH 
UNSIZED PAPER: DIAMETER OP 
MOUTH 
OP 
BASiN=rl4-5cm. 
Distilled Water 
25 
0-6 
2-0 
4-2 
4 4 4 4 
50 
0-8 
1-5 
3-5 
4 4 • ( 
120 
, , 
1-5 
Potassium Nitrate — 
0-132 
120 
, , 
1-5 
0-20 
25 
0-8 
1-6 
2-8 
6-0 
50 
11 
2-8 
3-5 
Amruonium Nitrate . . . . 
0-20 
25 
1-0 
8-0 
16-0 
50 
1-3 
10-0 
16-0 
niilnrirlp ..... 
0-132 
120 
1-8 
0-20 
25 
2-0 
3-0 
6-5 
99 
60 
2-5 
3-5 
4-5 
• 4 • . . . 
Potassium Carbonate. . 
0-20 
25 
0-5 
0-7 
0-7 
60 
0-7 
0-9 
0-9 
Ammonium Sulphate. . 
0-20 
25 
2-5 
9-0 
4 4 
16-0 
99 99 
99 
60 
2-5 
7-5 
* • 
12-0 
