C 148 ] 
this hazinefs continued,, I began to fear that I might 
be prevented from obferving the end, and therefore 
meaiured, as carefully as unfavourable circumftances 
would permit, the following chords. 
h / // , , ' " 
At 11 33 56 chord = 19 52, 5 
11 40 25 = 16 27, 9 
1 1 42 7 = 15 5 
11 45 7 = J 3 4 6 » 0 
1 1 46 57 =12 9, 4 
But the Iky began to clear up ; and at 1 i h 58' 3" 
by the clock, or n h 54' 204" apparent time, I ob- 
ferved the end, which I believe may be depended 
upon to 3 or 4 feconds. , 
About 20 minutes after the Sun had palled the 
meridian, 1 meafured the Sun’s horizontal diameter 
with Dollond’s micrometer, and found it =3.2' o", 8". 
At feven o’clock in the morning, a Fahrenheit’s 
thermometer, made by Mr. Bird and placed in the 
fhade, flood at 424 degrees. At f 32' I expofed 
another thermometer of the fame fcale to the direct 
rays of the Sun. In five minutes the mercury role 
from 43 to 59. At 7 h 44' it flood at 674 ; and a- 
bout twenty minutes before the eclipfe began this 
thermometer had rifen even to 84. 
During 
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