59G PROF. J. J. THOMSON AND MR. G. F. C. SEARLE ON TELE RATIO OF THE 
Bottom end of Cylinder. 
Maximum Diameter. 
Calipers. 
23-8 
cm. 
Left-hand 
screw. 
Right-hand 
screw. 
Left-hand 
screw. 
Right-hand 
screw. 
1. (Mean of 4 readings) .... 
1-4078 
1-2042 
1-4171 
1-1950 
2. (Mean of 4 ,, ) . 
1-5469 
1-0671 
1-5910 
1-0196 
Minimum Diameter. 
Calipers. 
23-8 
cm. J 
Left-hand 
Right-hand 
Left-hand 
Right-hand 
screw. 
screw. 
screw. 
screw. 
1. (Mean of 4 readings) .... 
1-6915 
•9584 
i-6814 
0-9318 
2. (Mean of 4 ,, ) . . . . 
1-6916 
•9581 
1-6495 
0-9634 
Thus, maximum diameter of bottom end equals 
(1.) 23'8 cm. — ‘27 08 cm. + '00002 in. 
(2.) 23'8 cm. — '2708 cm. — '00068 in. 
Correcting for temperature, we find 
Maximum diameter of bottom end = 23'5348 cm. 
The minimum diameter of bottom end equals 
(1.) 23'8 cm. — '2708 cm. — '00734 in. 
(2.) 23'8 cm. — '2708 cm. — '00736 in. 
Correcting for temperature 
IMinimum diameter of bottom end = 23'5169 cm. 
Collecting these results we have for the inner cylinder 
Top end . Maximum diameter = 23'5302. 
Minimum diameter = 23'5161. 
Bottom end Maximum diameter = 23'5348. 
Minimum diameter = 23'5i69. 
Mean of these. =23'5245. 
