Cio8) 
mr^drmm contains fome miftakes, of which he chiefly (Ingles 
Ducone, as moft confidcrable, in Hei;e;/aftf 's Obfervation of 
and declares thereupon. That he, and feveral very 
intelligent Ajirommers ot France and Italy concurring with 
him therein, (whereas M. Hevelrus to him feems to ftand fin- 
gle, ai^ to this particular) found by their Obfervations, I hat 
this Comet could notion that day of February ^bz there where 
M. Btvelim placethit, 'viz* in Frinta Arutk^ unlcfs it be 
faid. That it viflted that Star q( Aries on the 18^^^ and return^ 
ed thence the i^^^^y into its ordinary courfco inwhich^ ac- 
cording to his^ and hisfeveralCorrcfpondcnts Obfcrvations, 
the Comet on Feir. 17. was diftant from that frfi Staroi 
Aries at leaft i degree and 17 minutes h and on February 19; 
(he having miJTedj as well as his other Friends,thc Obftrva- 
tion on Fehr. 18.) was advanced in its way 12 or 13 minutes, 
but yet diftant from the faid Star fime minutes above a vphole 
..degree^ and confequcntly far from having then paffed it. 
After Vt^hich time M. Au%OHt affirms to have fecn it, as well as 
feveral others^ for many days, and that until March i\ : ob- 
ferving. That about Febr, 26. or 27, when the Comet was 
neareft to the often- mentioned firJio( Arks^ it approached 
^ot nearer thereunto, then at the diftance of 50 minutes. 
This important Difference between two very Learned, 
and very defcrving Perfons, being come to the knowledge 
of fome of the ableft Phihfophrs and Ajirommers of England^ 
hath been by them thought worthy their Examination; and 
they being at this very prefent employed in the difcuffion 
thereof, by comparing what hath been done aodpublifti'd 
by the Diflenters, and by confronting with them their own 
Domeftick Obfervations, are very likely to difcernuherc 
the miftake lies 5 and having difcern'd it, will certainly be 
found highly impartial and ingenuous io giving their fenfe 
of thefame, 
of 
