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would permit), to the actual passage between the earth and the moon.
(
*2) The zodiacal light is probably what the ancients called Trabes.
Emicant Trabes quos docos vocant.--Pliny, lib. 2, p. 26.
(*3) Since the original publication of Hans Pfaall, I find that Mr.
Green, of Nassau balloon notoriety, and other late aeronauts, deny
the assertions of Humboldt, in this respect, and speak of a decreasing
inconvenience,--precisely in accordance with the theory here urged in a
mere spirit of banter.
(
*4) Havelius writes that he has several times found, in skies
perfectly clear, when even stars of the sixth and seventh magnitude
were conspicuous, that, at the same altitude of the moon, at the
same elongation from the earth, and with one and the same excellent
telescope, the moon and its maculae did not appear equally lucid at all
times. From the circumstances of the observation, it is evident that the
cause of this phenomenon is not either in our air, in the tube, in
the moon, or in the eye of the spectator, but must be looked for in
something (an atmosphere?) existing about the moon.
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