DE. J. P. JOULE ON THE SUEEACE-CONDENSATION OF STEAM. 
153 
Description. 
No. 
Quantity of refrigerating 
water. 
Conductivity. 
Copper steam-tube 2 feet long. 
115 
201-88'| 
727-521 
Water in the same direction with the steam. 
116 
201-74 
700-44 
117 
118 
110-38 
173-64 
>185-4 
601-2 
768-58 
>686-44 
119 
219-26 1 
684-5 
120 
205-48 J 
636-38 J 
Copper steam-tube 2 feet long. 
121 
691-6 1 
859-4 1 
Water moving in the opposite direction to 
122 
855-6 
872-28 
the steam. 
123 
124 
777-1 
135-8 
>451-87 
731-1 
531-59 
>674-92 
125 
117-06 
522-6 
126 
134-06 J 
532-54 J 
Copper steam-tube 4 feet long. 
130 
130-881 
388-56] 
Water in the same direction as the steam. 
131 
136 
;> 136-83 
571-56 
^499-29 
132 
143-61 J 
539-75 J 
Copper steam-tube 4 feet long. 
127 
333-18] 
713-7 1 
Water in the contrary direction. 
128 
347-18 
^335-69 
833-78 
^813-33 
129 
326-7 J 
892-52 J 
Copper steam-tube 6 feet long. 
145 
130-5 1 
355-84 
Water in the same direction as the steam. 
146 
126-36 
W31-53 
420-87 
W12-4 
147 
137-74 J 
1 
460-48, 
1 
Copper steam-tube 6 feet long. 
136 
266-02" 
676-6 " 
Water in the contrary direction. 
137 
246-9 
662-57 
138 
249-28 
802-02 
139 
230-64 
918-05 
140 
240-04 
;>250-17 
891-3 
^770-85 
141 
258-4 
846-46 
142 
251-14 
710-76 
j 
143 
257-52 
710-74 
1 
144 
251-64j 
719-16^ 
Iron steam-tube 4 feet long. 
Water in tlie same direction as the steam. 
148 
149 
119 1 
137-84 J 
. 128-42 
368-431 
440-92 J 
> 404-67 
Iron steam-tube 4 feet long. 
Water in the opposite direction. 
150 
151 
339-28' 
349-17 J 
1 
> 344-22 
455-08' 
505-87, 
> 480-47 
The above mean results are collected and averaged as follows : — 
Direction of stream. 
Quantity of water. 
Conductivity. 
With the steam. 
185-4 ' 
136-83 
131-53 
128-42, 
>145-54 
686-44' 
499-29 
412-4 
404-67. 
>500-7 
Contrary to the steam. 
451-87' 
335-69 
250-17 
344-22, 
>345-49 
674-92' 
813-33 
770-85 
480-47, 
>684-89 
The conductivities for the different directions of the flow of refrigerating water will 
