278 
THOMPSON YATES LABORATORIES REPORT 
The potential differences between the same points and the other cross section were next 
determined. 
Point (1) 
(2) 
(3) 
(+) 
(5) 
(6) 
(7) 
(8) 
(9) 
Potential Differences 
•OO568 
•O0634 
•OO726 
•OO837 
■OO924 
•OO977 • s 
•OI 135 
OIOl6 
•OO488 
Average Values 
•004.36 
5c 2 x io~* D. 
•OO528 
58-1 
J 
•O0634 
68-o 
•OO726 
78-1 
*oo8oo 
oO 2 
•00919 
94-8 
•01096 
ni'S 
•00977 
99-6 
•00488 
48-8 
Finally, the resistances between each point and the upper cross section were again taken to deter- 
mine the alteration produced in them by immersion in water. 
From Upper Cross 
Resistance 
Section to 
In ohms 
In ohms per centimetre 
Point (1) 
13,500 
13, 5°° 
„ (*) 
30,000 
I 5,000 
„ (3) 
39,300 
I3,IOO 
„ (+) 
51,700 
12,950 
„ (5) 
61,700 
12,340 
„ (6) 
92,400 
15,400 
„ (7) 
99,700 
14,240 
„ (8) 
109,000 
13,620 
» (9) 
I 20,000 
13,3°° 
„ (>°)* 
I 10,300 
I I,6oO 
Points marked thus * are in each case the secoml cross section. 
