BETWEEJ^ THE VISCOSITY OF LIQUIDS AHD THEIR CHEMICAL HATURE. 81 
Left limb. 
Right limb. 
Temp. 
Press. 
Corr. 
V- 
Temp. 
Press. 
Corr. 
>?• 
0-30 
101-83 
-000069 
•003064 
0-30 
101-78 
•000069 
•003065 
0-16 
101-65 
-000072 
•002912 
5-12 
101-62 
•000072 
•002916 
10-47 
102-60 
■000076 
•002757 
10-47 
102-53 
•000076 
•002761 
1517 
102-53 
•000079 
•002630 
15-18 
102-48 
■000079 
•002630 
20-09 
102-49 
•000082 
•002514 
20-11 
102-42 
•G00082 
•002512 
25-74 
102-48 
•000085 
•002385 
25-72 
102-41 
•000085 
•002385 
29-43 
102-00 
•000087 
•002300 
29-53 
102-08 
•000087 
•00-2301 
35-03 
101-61 
•000090 
•002187 
85-28 
101-65 
■000090 
•002187 
In reducing the observations, Zander’s value, 07420 for the density at 0 °, and his 
expression 
V = 1 -h -OailOG t + -0099280 f + -0-58817 
for the thermal expansion (■'Annalen,’ 243, 2), have been employed. 
Taking 
7 /^ = -003064 > 7 g = -002187 77.3 (calculated) = -002589, 
Q = 0'-30 tg = 35°-15 (from curve) = lG'^-80, 
the formula 
8-4251 
~ (146-862 -h 
is obtained, which satisfactorily reproduces the observed values. 
Etlnjl Propyl Ether. CH 3 .CH 3 .O.CH 0 .CH 0 .CH 3 . 
Prepared from ethyl iodide and sodium prop}date and dried over sodium wire. 
The portions used for viscosity observations boiled from 62°-93 to G2°-98. Bar., 747'7 
millims. Corrected and reduced b.p. = 63°-44. 
Left limb. 
Ri 
gbt limb. 
1 
i 
1 
1 
Temp. 
1 
Press. 
Corr. 
V- 
1 Temp. 
’ 
Press. 
Corr. 
i 
V- 1 
0-32 
101-38 
•000054 
•003955 
0-38 
101-31 
•C00054 
•003950 
5-66 
101-30 
•000057 
•003709 
i 5-64 
101-22 
•000057 
•003719 
10-63 
101-23 
•000060 
•003511 
! 10-68 
101-15 
•000060 
•003510 
15-65 
101-14 
•000063 
•003323 
; 15-67 
10]-10 
•000063 
•003326 
20-38 
101-10 
•000065 
•003162 
i 20-27 
101-04 
•000065 
•003169 
25-39 
102-01 
•000069 
•003C05 
i 25-30 
101-96 
•000070 
•003006 
30-11 
102-00 
•000072 
•00-2863 
! 30-06 
101-92 
•000072 
•002864 
35-12 
101-91 
•000074 
•002725 
i 35-04 
101-89 
•OOC074 
•002729 
39-96 
101-75 
•000077 
•002600 
40-01 
101-69 
•000077 
•002597 
45-63 
101-59 
•000080 
•002466 
45-62 
101-52 
•000080 
-002466 
50-35 
101-53 
•000083 
•002364 
50-25 
101-49 
•000083 
•002362 
55-06 
101-40 
•000086 
•002262 
54-95 
101-36 
•000086 
•002266 
60-32 
i 
101-32 
■0C00S9 
•002157 
60-03 
101-32 
•000089 
-002161 
MDCCCXCVII.—A. 
M 
