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(180
the more troublesome Use and Apparatus of Micrometers and longer Telescopes; by whose means however we may come to a greater Exactness. Let then that easy Method, of observing the apparent Diameter of the Moon, be recommended here to Astronomers. For (in the Fig. [[strikethrough]] TTT. [[/strikethrough]] ^ [[insertion]] 48. [[/insertion]] the Length of the Line TF, drawn from the Center of the Earth to the Focus of the Moon's Orbit, especially in the Winter [[underlined]] [[Era?]] [[/underlined]], does not permit us to rely upon the Rule given by Sir [[underlined]] Isaac Newton [[/underlined]] p. 432, concerning the Apparent Diameter of the Moon: Which Rule supposes the Points T and F to be coincident. And indeed that Rule of Sir [[underlined]] Isaac Newton [[/underlined]] is filled to find the Moon's Diameter apparent to the Focus F; which differs sensibly from her Diameter apparent to the Point T. Wherefore I may say after him, [[underlined]] Tentent Astronomi quam probé [[/underlined]] Newtoni [[underlined]] Regula, & Regula hic exhibita, cum Phænomenis congruant. [[/underlined]]
6. Nay, the very Duration of the Eclipse of one single fixed Star by the Moon, when her Center does seem to pass upon or very near the Star, is sufficient, to discover that Refraction, by means of the Difference of the apparent Diameter (or Diameters) of the Moon found actually by Astronomical Instruments at the Times of Observations, and of the apparent Diameter (or Diameters) of the [[underlined]] Space [[/underlined]] hidden by the Moon in the Sphere of fixed Stars, [[underlined]] that [[/underlined]] would account for the Eclipse of the said Star, did the Rays of Light suffer no Refraction in their close Passage near the Surface of the Moon. For supposing the Moon's horary Motion known, by Observation or otherwise, the Difference, between those two then

Transcription Notes:
edited mainly for typos and because I was uncertain of certain transcribed characters. -megshu edited best guess at certain charachters - @siobhanleachman