DE. J. P. JOULE THE SUEFACE-CONDENSATION OF STEAM. 
147 
Series 3. — Copper steam-tube. Water space between tubes 0-025 inch. 
No. of experiment. 
Quantity of refrigerating 
water. 
Conductivity. 
44 
11-24 
53-1 ■] 
40 
21-4 
84-5 
39 
57-5 
255-6 
45 
45-3 
257-1 
46 
91-2 
239-1 
43 
53 
99-4 
103-3 
> 95-19 
289-4 
305-9 
>281-8 
54 
117-4 
354-7 
55 
129-2 
411-7 
41 
133-4 
303-4 
42 
155 
303-1 
56 
177-8 J 
523-8 J 
47 
455 
198-54 
63 
493-2 
444-3 
58 
497*9 
446-8 
57 
504-8 
334-1 
49 
511-1 
491 
48 
50 
523-1 
533-2 
>536-17 
473-3 
498-6 
>457-06 
! 59 
545-5 
589-2 
! 51 
572-5 
512-7 
! 61 
586-7 
561-4 
60 
589-1 
564-3 
52 
622 
370-5^ 
Series 4. — Lead steam-tube. Water space between tubes 0'05 inch. 
No. of experiment. 
Quantity of refrigerating 
water. 
Conductivity. 
80 
18-24 
85-274 
68 
29-6 
115-51 
79 
30-9 
127-2 
74 
32-2 > 74-42 
138-2 
|>164-1 
71 
33-8 
145-7 
69 
155-2 
256-5 
78 
221-lJ 
280-2 J 
72 
394-14 
252-2 4 
70 
417-8 
330-5 
75 
73 
624-1 
655-4 
>590-24 
127-2 
336-2 
>270-7 
76 
656-1 
212-7 
77 
794 J 
365-4 
We deduce from the averages in Series 1 
95 
2 
99 
3 
1 
1 
Coznri 
1 _ 
C 4 ' 14 
xw . 
55 
4 
