a?) 
In that Trad he obrervcs, firft in Genemly that thisfecond 
Comet is contrary to the precedent, almoft in all particulas : fe- 
iog that the former moved very fwift, tins, pretty flow j that, a- 
gamft the Order of the figiis from Eaft to Welt, this, following 
them, fronni Weft to Eaft : that, from South to Norths this, from 
North to Southj as far as it hath been hitherto, that v/e hear off', 
obfervcd: f/;^^, on the fide oppofice to the Sun, this, on the 
fame fide : that^ having been in its Periga at the time of its Op- 
pofition, thisy having been there, out of the time of its Con- 
junction : where he takech alfo notice, that this Cmet differs in 
brightnefs from the other, as well in its Body, which is far more 
vivid and diftind:^ as in its Train, whofe fplendor is much great- 
er, fince it may be feen even with great Telcjccpes, which were 
ufelefs in the former, by reafon of its dimnefs. After this he 
defcends to particulars , and informs us , that he began to ob- 
ferve this Comet Jpriliht fecond, and continued for fome days 
following, and that nsfocn as he had made three or four Ob- 
fervationsj he refolved to try again an Ephetjiernles but that, 
having no inftruments exacSi: enough, and the Comet being in a 
pUicCj deftitute of Stars, and fnbjed: to RefradionSj he feared 
to venture too much upon Obfervations fo ncer one another, 
fince in fuch matters a perfcd cxadlnefs is neccfiary, and wifli- 
ed to fee fome precedent Obfervations to diredt him: which 
having obtained, he thereby verified what he had begun, and 
refolved to carry on his intended Ephcmcrides, efpccially being 
urged by his Friends^ and engaged by his former undertaking, 
thatfo it might not be thought ameer hazard, that madehinx 
hit in the former ; as alfo, that he might try, whether his Me-^. 
thod would fucceed as well in flower, as in fwifter Comets, and 
in thofc, that are necr the Sun:, as in inch ns are oppofite there- 
unto, to the end, that men might be advertifed of the determi- 
vauon of itsufe, if it could not fervebutin certain particular 
Cafes. 
He relateth therefore, that he had finifli'd this New Epheme- 
rides April the fixth, and put it prefently to the Prefs • in doing: 
of which, he hopes, he hath not difobliged the Fubiick : feeing 
that, though we fhould !oofe the fight of this Star within a few- 
day?, by reafon of its approach to the Sun, yet having found, 
