462 Mr. South on the discordances between the 
Table VII.- — continued. 
Exposure of the Instrument, June 7. 
Times of Comparison. Thermometers under the cover Thermometers under the cover 
j 1> of the Black, or Western Brace. of the White, or Eastern Brace. 
3 50 62°. o 62 °.o 
4 20 90 .O 64 .0 
4 30 96 .0 65 .0 
4 50 100 o 68 .0 
5 2 108.0 74.0 
Mean = 98 .5 Mean ~ 67 .8 
Hence, difference of temperature = 30°.7. 
Not a cloud visible, during the exposure of the instrument. Thermometers 
under the covers of the axis, gave results similar to the above. 
Exposure of the Instrument, June 22. 
Times of Comparison. Thermometers under the cover Thermometers under the cover 
}, m< of the Black, or Western Axis. of the White, or Eastern Axis. 
5 O .............. . 6l°.3 6l°5 
5 20 88 .0 64 .0 
5 30 90 .0 64 .0 
5 45 92 .0 66 .0 
5 S3 94 -° 68 .0 
6 4 ............... 98.0 71.0 
Mean =2 92 .4 Mean = 66 .6 
Hence, difference of temperature — 25°.8. 
Exposure of the Instrument, December 22. 
The Sun's rays, were allowed to fall upon the instrument, 
half an hour before noon, at which time, the thermometers 
on the western and eastern axes, stood at 53°.o and 3T.0. 
Hence, difference of temperature = 22°.o. 
