[i86] 
ftruck me at the time, before my own ideas were 
blended with thofe of other people, and altered (as 
n:ay fometimes be the cafe by communication) from 
what they originally were in my own mind, I fliall 
prefent this hafty memoir as I have drawn it up, 
without any corre( 5 lion or alteration. 
June 8, 
1769. 
Samuel Horfley. 
N. B. The figure that I have given does not (I 
believe) exprefs accurately the proportion of the liga- 
ment to the circular fegment of Venus’s difk, I think 
that the right lines, which terminated the ligament, ' 
die not go off from the limb of Venus in angles quite 
fo riiarp as my figure exhibits. Nor do I think their 
convergence was fo great as I have drawn it. 
June 10, 1769. 
June 13, 1769* Since I wrote the above, I have 
received from Mr. Hornfby a minute of the differ- 
ence of his clock from mean time, at the time of 
obfervation, which I forgot to bring away with me 
from Oxford, and therefore could only ftate my ob- 
fervation before in the times of my own regulator 
and Mr. Hornfby *s clock. I now fubjoin my obfer- 
vations reduced to mean time at Oxford, reckoning 
Mr. Hornfby ’s clock too faft for mean time by 5" i 
at the hour of obfervation. 
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