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Times to 
which the 
above rates 
are due. 
The rates in the foregoing Tables are due to the middle moment of the intervals between the respective transits from whence they were inferred. The mean 
rates, in the case of the stars, are due to the middle moment between the mean of the times of the transits on the one night, and the mean of the times of the transits 
on the other. In the case of the sun, the rates are due to the middle moment between the respective apparent noons. In both cases these middle moments are 
given (in mean solar time), in order to facilitate an inspection of the three following Tables. 
