gift, the brightnefs of its finglc ^<r»f /, though the environing mote dilute 
matter were then almoft all loft., it being, according to the Author, more 
and more attenuated, and grown narrow, the nearer the Star approached to 
the Sun. 
Thirdly, 'tis noted, That this Cejw^? did very much digrefs from the Hjp^ 
thefts, delivered by il/. in regard that, whereas according to that 
Hjpcthepf, this Star (honld not arrive to the McUptick^iiW after the fpace of 
5 months, it arrived there the 28 of JfriL And then, that its firft Con jus- 
dion with the Sun hapned between the 1 9 and 20 of April, and the fecond, 
theiaftof-<^/?n7,not (2iS M. Aux^out, would have it; the 15 o^May. So 
that he concludes, that this Comet never came down tothejp/«W/ and the 
T^wr^/, as the Hypothefis of Au^ut rcqmtes^ but that frooa 
Afril7o, i\ did immediately take its courfe towards the Fcliptick, dcflefting 
every day more aad more from the SeMion of a Great Circle^ to the Lacida 
of /4n>/,trriving at the EcHpHck, the laft of v^/jW/, about the 8th or loth 
dcg. of TaurHS-^ not in fniy about the 8 th of Gemini , and the Eye ef 
Tdurfts. 
Feffrthly, He intimates, that if this Comet had appeared fome few weeks 
fooner, it would have confronted the former Comet, being yet in its vi- 
gour and of a confpicuous bignels, ip tlic fame place, where that was, viz. the 
Headef Aries, - 
Fifthly, He obferves, that this Star in progrefs of time became Retrograde^ 
whence it came to pafs, that in the Months of fme and fnly it did not appear 
again before the fifing of the Sun,though the Sun left it far behind : where- 
as, if it had proceeded toward the Eye of Taurus^ it would have appeared 
again in the morning. 
Sixthly ^It maintains, that this Gomet was not the fame with the former • 
which he thinks may be demonftrated, onely by a due Delineation ef 
both their Courfe upon the Globe • where he faith it to be evident, that the 
former could never come to the H^^^ of Pf^4/«/, as moving already in Fe- 
bruary ftreight Courfe about the Head o^ Aries : Befides, that the/or- 
mer went in the very begiijining in a Retregrade motion ; but this perpetually 
in a direft one : that^ afout the end, very flew, its Head lefsning and grow- 
ing dark; ffc/fwiftjeROUgh,withits head coflfpicuous and bright. To which 
he adds^j-thtt^c whole Courfe of the former was made under a quite diffe- 
rent Angle of the Orbite and EcHftiek^ and a different Motion of the Nodes 
from the latter : As alfo that their Faces differed very much from one ano* 
ther ; the prfi exhibiting all along a matter, which as to its denfity and rari- 
ty, altered from day to day exceedingly, whereas the fecund retained (to the 
Authors admiration, who affirms, never to have obfcrved the like) all the 
time he faw it , one and the fame round, denfe and bright Speck or 
Kernel. 
AH which he concludes i , With an Intimation of his fenfe concerning two 
O'vhcr Comets, pretended to have been lately feen, o»f at Rome^ about the 
Girdle 
