BETWEEJ^ THE VISCOSITY OF LIQUIDS AND THEIR CHEMICAL NATURE. 531 
Left limb. 
: 
Right limb. 
. Temp. 
Press. 
Corr. 
V- 
Temp. 
Press. 
Corr. 
'/• 
0 
3-51 
128-70 
-000038 
•007647 
0 
4-04 
128-67 
•000038 
•007563 
9-75 
129-22 
-000041 
•006991 
9-73 
129-14 
•000041 
•006991 
14-54 
129-06 
•000045 
•006402 
14-52 
129-01 
•000044 
•006407 
i 19-46 
128-98 
-000047 
•005951 
19-49 
128-89 
•000048 
•005952 
25-42 
128-65 
-000051 
•005492 
25-42 
128-57 
•000051 
•005494 
30-32 
128-61 
•000054 
•005131 
30-32 
128-50 
•000054 
•0051.33 
35-71 
128-55 
•000058 
•004767 
35-74 
128-48 
•000058 
•004764 
1 40-81 
128-53 
•000061 
•004463 1 
41-01 
128-45 
•000061 
•004451 
46-14 
1-28-46 
•000065 
•004156 
46-07 
128-40 
•000065 
•004163 
52-29 
128-36 
•000070 
•003844 
52-29 
128-29 
■000070 
•003847 
57-66 
128-74 
•000074 
•003596 1 
57-72 
128-68 
•000074 
•003594 
61-56 
128-72 
•000077 
•003442 ! 
61-57 
1-28-62 
•000077 
•003438 
63-26 
128-71 
•000079 
•003358 
In reducing the observations Kopp’s value for the relative density, d (074°) 
= 0’81796, and his expression for the thermal expansion (‘Jahresbericht/ 1847, 66 ) 
were employed. There is, however, reason to believe that the methyl alcohol 
employed by Kopp was not wholly free from water, in spite of the care employed 
in its preparation. We, therefore, recalculated the value of the kinetic energy 
correction by means of the more recent determinations of the relative density and 
expansion of methyl alcohol given by Dittmar and Fawsitt, but found that the 
coefficients were not affected within the limits of experimental error. 
Taking 
= -007605 7^3 = -003440 77 ^ (calculated) = -005115 
= 3°-77 Q = 61°-36 curve) = 30°-53, 
we obtain the formula 
6940-8 
” (163-93 + 02-6793 ’ 
which gives the following calculated values :— 
