1909-10.] Andrews’ Measurements of Compression. 
11 
Group C.* 
(Corresponding to Tables I. to IY. in the posthumous paper published 1886.) 
Compressibility of a mixture of 3 parts by volume of carbon dioxide 
and 4 parts by volume of nitrogen. 
The tubes used were : — For hydrogen, Tube A, Hydrogen Tube 2, 1st Table, Book 17 ; 
for N and C0 2 , Tube B, Air Tube 1, 2nd Table, Book 17, Volume VIII. 
Table I. — Temperature of Mixture, 2° - 2 C. 
1 
Number in 
Notebook 16, 
Volume VIII. 
Place in Table. 
Hydrogen. 
N and C0 2 . 
Difference in 
Levels. 
Temperature. 
Column 
Length. 
Volume. 
Pressure in 
atmospheres. 
Temperature. 
Column 
Length. 
1 
Volume. 
0°. 
0-2892 
1 
0°. 
0-2464 
176" 
1 
7-30 
417-3 
•007041 
43-27 
2-32 
310-2 
•005268 
99-8 - | 
177" 
2 
7-30 
36P45 
•006085 
50-38 
2-34 
262-4 
•004446 
9P75- 
179" 
3 
7-22 
341-1 
•005736 
53-56 
2-08 
244-7 
•004140 
89-0 - 
178" 
4 
7*26 
322-25 
•005414 
56-80 
2-38 
229-75 
•003881 
85-18- 
180" 
5 
7-21 
301-75 
•005071 
60*91 
2-06 
212-4 
•003584 
82-05 - 
181"' 
6 
7-21 
28P5 
•004732 
65-94 
2-10 
195-5 
•003292 
78-70- 
182" | 
183" / 
7 
7-20 
262-4 
•004411 
70-50 
2T6 
180-12 
•003027 
75-0 - 
185" 
8 
7T8 
222-0 
•003731 
84-13 
2-21 
147-27 
•002460 
67-47 - 
186" 
9 
7T7 
200-9 
•003380 
93-62 
2-21 
130-2 
•002171 
63-4 - 
187" 
10 
7T7 
181-05 
•003051 
104-27 
2-17 
114-25 
•001901 
59-60- 
188" 
11 
7T7 
161-7 
•002731 | 
117-53 
2-19* 
99-1 
•001645 
55-38- 
189" 
12 
7T7 
142T 
•002404 
135-0 
2-25 
84-35 
•001399 
50-55- 
* In printed paper 2°-21, but 2°'19 on notebook. 
* Tables published in posthumous paper “ On the Properties of Matter in the Gaseous 
and Liquid States under various conditions of Temperature and Pressure,” Scientific Papers , 
p. 457, and Phil. Trans, of the Royal Society of London , vol. 178 (1887), pp. 45-56 (read 
March 18, 1886). 
