rom South to North, _this_, from North to South, as far as it hath
been hitherto, that we hear off, observed: _that_, on the side opposite to
the Sun, _this_, on the same side: _that_, having been in its _Perigee_ at
the time of its Opposition, _this_, having been there, out of the time of
its Conjunction: where he taketh also notice, that this _Comet_ differs in
brightness from the other, as well in its Body, which is far more vivid and
distinct, as in its _Train_, whose splendor is much greater, since it may
be seen even with great _Telescopes_, which were useless in the former, by
reason of its dimness. After this he descends to particulars, and informs
us, that he began to observe this Comet _April_ the second, and continued
for some days following, and that as soon as he had made three or four
Observations, he resolved to try again an _Ephemerides_; but that, having
no instruments exact enough, and the Comet being in a place, destitute of
Stars, and subject to Refractions, he feared to venture too much upon
Observations so neer one another, since in such matters a perfect exactness
is necessary, and wished to see some precedent Observations to direct him:
which having obtained, he thereby verified what he had begun, and resolved
to carry on his intended _Ephemerides_, especially being urged by his
Friends, and engaged by his former undertaking, that so it might not be
thought a meer hazard, that made him hit in the former; as also, that he
might try, whether his Method would succeed as well in slower, as in
swifter Comets, and in those, that are neer the Sun; as in such as are
opposite thereunto, to the end, that men might be advertised of the
_determination_ of its use, if it could not serve but in certain particular
Cases.

He relateth therefore, that he had finished this New _Ephemerides_ _April_
the sixth, and put it presently to the Press; in doing of which, he hopes,
he hath not disobliged the Publick: seeing that, though we should loose the
sight of this Star within a few days, by reason of its approach to the Sun,
yet having found, {38} that it is always to rise before the Sun, and that
we may again see it better, when it shall rise betimes, towards the end of
_May_, and in the beginning of _June_, if the cleerness of the Day-break
hinder us not; he thought it worth the while to try, whether the truth of
this _Ephemerides_ could be proved.

He affirms then, that the _Line_ described by this Star resembles hi