an eclipse of the Moon was in progress in the early
morning, when the Sun was seen to rise by members of the Academy of
Sciences who were observing the phenomenon at Montmartre near Paris.

On December 23, 1703, the Moon when totally immersed was seen at Avignon
showing a ruddy light of such brilliancy that we are told it had the
appearance of a transparent body illuminated by a light placed behind.
Johnson finds that the total phase took place in the early morning, and
lasted from 5h. 36m. to 7h. 22m. a.m.

The lunar eclipse of May 18, 1761, as observed by Wargentin,[141] at
Stockholm, furnishes a remarkable instance of the invisibility of the
Moon on certain occasions, when completely immersed in the earth's
shadow. The total immersion of the Moon took place at 10h. 41m. p.m. The
part of the margin of the lunar disc which had last entered the shadow
was fairly conspicuous for 5 or 6 minutes after the immersion, and to
the naked eye exhibited a lustre equal to that of a star of the 2nd
magnitude; but at 10h. 52m. this part, as well as the whole of the rest
of the Moon's body, "had disappeared so completely, that not the
slightest trace of any portion of the lunar disc could be discerned
either with the naked eye or with the telescope, although the sky was
clear, and the stars in the vicinity of the Moon were distinctly visible
in the telescope." After more than half an hour's search, Wargentin at
length discovered the whereabouts of the Moon by means of a faint light,
which was visible at the Eastern edge of the disc. A few minutes
afterwards, some persons of acute vision were able to discern, with the
naked eye, a trace of the Moon, looking like a patch of thin vapour, but
more than half the disc was still invisible.

An eclipse of the Moon, on March 29, 1801, was observed by Humboldt, on
board ship, off the Island of Baru, not far from Cartagena de las
Indias, in the Caribbean Sea.[142] He remarks that he was "exceedingly
struck with the greater luminous intensity of the Moon's disc under a
tropical sky than in my native North." Johnson makes Humboldt to refer
to the greater clearness of the "_reddened_ disc," but these words do
not appear either in the German or in the English version.

A total eclipse of the Moon occurred on June 10, 1816. As observed by
Beer and Maedler and others, the Moon completely disappeared. The summer
of 1816, be it remembered, was very wet, and probably this had something
to do with the