Mr. South on the discordances between the 
Table VIII. — continued. 
Exposure of the Instrument, October 12. 
Times of Comparison. Thermometers under the cover Thermometers under the cover 
h, m of the Biack, or Western Axis. of the White, or Eastern Axis, 
12 28 50°.0 
5o°.o 
12 40 68 .0 
12 50 
12 S 3 
12 57 
*3 S 
13 10 
13 *2 
70 .O 
73 -o 
74 -o 
74 -5 
75 - 2 
75 -4 
5 i -5 
5 i -7 
51 .8 
52 .2 
52 .5 
53 .0 
53 - 2 
Mean = 72 .9 Mean = 52 .3 
Hence, difference of temperature = 20°.6. 
Thermometers under the covers of the western and eastern braces, did not differ 
from those applied to the axes, one degree. 
Light clouds passing, prevented the transits over the wires D and C, being pro- 
cured ; and it was not deemed right to call in the aid of the micrometer wire, 
lest any source of error, might be suspected. Not a cloud, however, was visible, 
south of the zenith of the observatory during the experiments. The transits 
over E and B, were extremely satisfactory, the star being remarkably steady. 
Exposure of the Instrument, October 1 6. 
Times of Comparison 
h. m. 
12 28 49°-° 
Thermometers under the cover 
of the Black, or Western Axis. 
Thermometers under the cover 
of the White, or Eastern Axis. 
49 °.o 
12 34 
12 38 
12 42 
12 45 
12 49 
12 55 
12 59 
64 .5 
66 .5 
69 .0 
70 .0 
71 .0 
72 .5 
73 -8 
50 .0 
5 1 -5 
51 .7 
52 .0 
52 .6 
53 -o 
53 -3 
Mean = 69 .6 Mean ~ 52 .0 
Hence, difference of temperature — I7°.6. 
Thermometers under the covers of the braces, gave results not differing from the 
above, one degree. Not a cloud visible, during the observations. 
