(to;) 
He conceives^ That all Cornets do refpeft the Sun as i heir 
King and Centre, as Planets do, making them a kinde of Spa - 
now Planets , that emulate the true ones in their Motion al- 
nioftin all things. 
The Train, he makes nothing elfe bur the Beams of the 
Sun 9 falling on the head of the Comet, and pa fling through 
thefame 5 refrafted and reflefted. And among ft his Obfir~ 
nations and Schemes of this Comet, there occurs one, where- 
in the Tail is curve, fo fecn by him Decemb. it. He afligns 
the caufes why the Trains do fo. much vary, and (hews alfo, 
on what depends their length. 
Whether the fame Cornets return again, as the Spots in 
the Sun? and , Whether in the time of great Conjunctions 
they are more eaflly generated? and whether they can be 
certainly foretold f with feveral other Inquiries, he refers 
for to his great Book 
^ As,to' fnpgb&jlicatiQnf) he fomswhat complains, That Men 
do more inquire what Comets fignifie, then what they are, 
or how they are generated and moved 3 profefling himfelf 
to be of the minde of thofe that would have Comets ra- 
ther admired then feared 3 there appearing indeed no cogent 
reafbn, why the Author of Nature may not intend them ra ~ 
ther as Monitors of his Glory and Greafnefs , then of his 
Anger or DifpIeaf&H 5 efpecially feeing that Tome very dili-. 
gent Men (among whom is Gemma Frifiw') take notice of 
as great a number of good as bad Events 3 confequent to Co - 
mets. 8 neca alfo relating. That that Comet which appear- 
ed inTis Time, was fo happy,, that it did Cometis dttrahere 
in fa mi am, it cleared the credit of Cornet^ and made Peo- 
ple have good thoughts of them* 
Having given Come Account of what maybe look’d for 
in this Prodromusy it follows. That feme alfo fhouldbe reru 
dredof the Asdmadverfions mention’d to have been made 
upon the fame. This was done by that Parijtan Philofopher 
Monfletir Auzout, in a Letter of his to his Country-man 
Monfleur Jktf/C 'in which be ftrongly conceives 5 That this 
I rodromm 
