528 
MESSRS. T. E. THORPE AHD J. W. RODGER ON THE RELATIONS 
The observations for viscosity gave :— 
Left limb. 
Right limb. 
Temp. 
Press. 
Corr. 
V- 
Temp. 
Press. 
Corr. 
V- 
0 
0-21 
128-89 
-000039 
•007992 
0 
0-27 
128-86 
-000039 
•007993 
11-54 
128-69 
•000045 
•006836 
11-50 
128-61 
•000045 
•006848 
23-36 
128-58 
•000051 
•005912 
23-37 
128-53 
•000051 
•005996 
37-19 
128-44 
-000059 
•005062 
.34-76 
128-39 
•000058 
•005194 
48-72 
128-.S2 
-000065 
•004501 
48-71 
128-28 
•000065 
•004501 
59-94 
128-11 
-000071 
•001043 
59-94 
128-06 
•000071 
•004046 
60-35 
99-98 
-000056 
004013 
60-10 
99-92 
•000056 
•004046 
71-16 
99-93 
•000061 
•003659 
71-24 
99-87 
•000061 
•003659 
85-50 
101-25 
•000068 
•003241 
87-20 
100-26 
•000068 
•003202 
98-68 
100-41 
•000074 
•002925 
98-68 
100-35 
•000074 
•002927 
109-92 
100-47 
•000079 
•002687 
109-58 
100-39 
•000079 
•002697 
123-50 
100-55 
•000085 
•002438 
123-56 
100-47 
•000085 
•002434 
135-25 
100-55 
•000090 
•002251 
135-31 
100-47 
•000090 
•002252 
1 
In reducing tlie observations we have employed Pinette’s value for the relative 
density, d ( 070 °) = 0’8812, and his expression 
V = 1 + -0394866^ + -0697463^2 + •0851933^3 
for the thermal expansion (‘ Annalen,’ 243, 51, 1884). 
Taking 
= -007992 .>73 = -002251 >73 (calculated) = -004242 
= 0°-24 ^3 = 135°-28 ^3 (from curve) = 54°-88, 
we obtain the formula 
19-395 
~ ( 115-66 + 0 “ ’ 
by means of which the calculated values given below are obtained. 
Mean temp. 
V- 
I 
Difference. ! 
1 
1 
1 
1 
Observed (mean). 
Calculated. 
0 
0-24 
•00799 
•00799 
•00000 
11-52 
•00684 
•00686 
+ -00002 
23-36 
•00595 
■00593 
- -00002 
35-97 
•00513 
•00514 
+ -00001 
48-71 
•00450 
•00451 
+ -00001 
59-94 
•00404 
•00404 
•00000 
60-27 
•00403 
•00403 
•00000 
71-20 
•00366 
•00365 
- -00001 
86-35 
•00322 
•00321 
- -00001 
98-68 
•00293 
•00292 
- -00001 
109-75 
•00269 
•00269 
•00000 
123-53 
•00244 
•00-244 
•00000 
i 135-28 
•00225 
■00225 
•00000 
