u°) 
It will cut the Ecliptic f about the end of JWy, new -Style, a lit- 
tle more Eastwards than the Eye oiTaurm • at which time there 
will be no feeing of it, except it be with a Telefecpe. 
It will be towards the End of Aprils new ftyle, twice as far 
cliftant as it was in its Perigee, thrice as far, May the fourth, four 
times, May the eighteenth, and five times, June the firft, 6c . 
He would not have Men furprifed, that there have been two 
Comets within fo fhort a time ; feeing, faith he, there were four, 
at leaft,three, in the Year I6r8. and in other Years there have 
been two and more at the fame time. What he adds about 
their fignification, we leave to Afirologers to difpute it with him. 
He concludeth with asking pardon, if he have committed mif- 
takes, which he hopeth he fhall obtain the fooner, becaufe of 
the fmall time he hath had for thefe calculations : and he wifhes 
that he could have made all theObfervations himfelf,feeing that 
it is„eafie to fail, when one muft truft to the Obfervations of o- 
thers, whereof we know not the exatftnefs : where he idftan- 
ceth, that, according to his Obfervations, the way of the Co - 
met fhould go neerer the Ecliptick than he hath marked it, even 
without having any great regard to the Refractions: but fince 
he would fubjeCt himfelf to others, he hath made it pafs a little 
higher, which, he faith, was alrnoft infenfibly fo, in thofe few 
days that he was obferving and writing, but that this may per- 
haps become fenfible hereafter : which if it be fo,he affirms that 
it will cut the Eeliptick,an(i Equator i ooner, than he hath mar- 
ked it, 6c. However, he thinks it convenient, to have given a- 
forehand a common Notion of what will become of a Comet, to 
prepare men for all the Changes that may fall out concerning 
it : which he affirms he hath endeavoured to do ; the reft being 
eafie to correct, as foon as any good Obfervations, fomewhat 
diftant, have been obtained, confidering, that there need but 
two very exaCt ones, a little diftant when the Star is not fwift,to 
trace its Way ; although there muft be at leaft three, to find out 
all the rgft. But, then would he have it confidered, that al- 
though his Method fbould be very exaCt, if there be not at hand 
Inftruments big enough, and Globes good enough to truft to, - 
nothing can be done perfectly in thefe kind of Predictions. 
A filiation 
