C 4045 ) 
MATchicK^.-^ 5'.at night,thc Comet feen without a Telefcope 
appeared no otherwife than a Star of the 4th inagnitude : through 
the Telefcope he exceeded even thofeofthe firftjbut he was very 
dark,and in vi^hat manner foever we looked upon him, we could 
obfervealmoftnotaylat allof himo He had paffed one degree 
and an half beneath the Lucida. of the Southern foot of Perjem ; 
fo that this ftar was exactly in the midft of the Comet and the lit- 
tle ftar of the leg of J?^r/J/i^, marked « by B^iyerus^ which then we 
fiw not but by a Telefcopec A flreight line, drawn from one of 
thefe ftars to theother,did almoft touch the Southern limb of the 
Comet,which being transferred upon the Map of the Fixt Stars, 
fell upon 2S deg. sind45'. of Taum^in the Northern latir, of 9. ^ 
deg. 
H. 9. 45'. Signor Caffim compared the Comet with the kfs 
bright Star of the Southern foot of Ferfef^^mzr which he had been 
March 28 ; and he found , that the Wcftern limb of the Comet 
touched a ftreight line^drawn throughthis Icfs bright ftar of Fer- 
fiu^'s Southern foot, and through the moft Northern of the Head 
ofT!mrm; but that he was already got fomewhat nearer to the lat- 
ter. This made him judge, that the Con;iet, which had lefr^on the 
North-lide,aIl the Stars of the Southern foot of Per fem^ would in 
the progrefs of his courfe leave^ on the South-fide^all the moft 
Northern ftars of the head of taurm^ 
March 3 r, h. 8 . in the evening, the Comet was ina direfi line 
with the Lucidn in the foot ofPerfemyZwd with the moft Northern 
in the Head of Taurus ; but he was more than twice as much re» 
moter from the firft than the other,and being transferred upon the 
Map of the fixt ftars,he was found at 1 5 minutes from Gemini^ in 
thelatit, ofS deg. 49', During the whole time that we could ob- 
ferve him this night, (which was till loaciock,) he quitted not 
this ftreight line, which was almoft parallel to the horizon? 
tiotwithftanding that his own particular motion fliould ralfe him 
a little above it \ as the paraIlax,on the contrary,fl]ou!d fink him 
beneath it in approaching to the horizon. It may be,there was a 
compenfation made of thefe two contrary motions : pofllbly alfo 
the effeft of both was not fenfible ; which oughf to be examined. 
If it be found jthat in fome remote quarters the fame obfervation 
have been nmde, the will be determined by comparing 
the Obfervatiofis, 
jfpril 1. theComet could not befeen without a, Telefcope, be- 
caufe tile Moon5being very near it., hid him from our fight. But 
.with 
