t 4^5^ ) 
gard of the Earth,becaiifc the motion was retrograde^ tiis was 
to be tiiade Concave towards the Earthy fuitable to what hath 
been (aid in the fame 1 heoryj becaufe that the motion of this 
Cx)met is dired. 
A-ccordingto this Hypothep^ thofe laft dales j^that the Clouds 
hindred us from feeing thisComet^he muft have continued his 
coi/irfe towards the root of the Southern horn of Taurus^ and 
having pafs'd theEoh'ptiqu^e bet-ween the ^th and loth of Jpril^ 
lie muft pais an the top of Orion s head the 20^/;; over his Arm 
the "i^tk^ and at the end of this monch hc will be in ih^MU^^ 
-Way. But it will J)e-diiBcult hence forward to find himfbecaufc 
of hisfmallnefs.and the light of the Moon* 
"Tis a thing worth obfcrving^that this Comet'keeps his courfe 
^almofl: hke thatof the 2(rfComet of 166 5, and of another of 1577 
-obferv'd by T^iT^e. For they have pafs'd through alraoft the 
'fame Conftellationsjthough this be more inchned Nord-wardj 
,^Bd cot the EcHptique five or fix degrees more forward than 
that of i66f . So that it feems, that in this place of the Heavens 
there is^as 'cwere^ a ^^^^j'tt^ for Comets* 
Mn Account ef feme Bob!{s, 
LBeREStSTEmiA SOLlDORVM Alexan. Marchetti, in Pv 
fm^ Acadmia PhihVrof^ExcufumVlorQntix 166 y in tkin^*. 
^^"^His bookcame not long fince to my hands It had been 
1^ promifed fome years before under the Title of GaliU- 
ms ampUat'Us^ But the Author naw follows not the Steps of Ga" 
i&^^/jbuc demonflrates all his Propofitions another way;build- 
*ing all upon this ground i Mommta CraviumproportiQnemhabent 
compQ^tam ex proper tionibus pmderzim longitudinum: which is his 
•gr ft Proportion* This Book being but fmalljand the fubjeft ad- 
mitting of enlargement^ the Author promifeth a larger Trea« 
-trie of the fame. 
' 11, Tabula numerorum A Dl^AWI^M defies millmm, ma 
cum ipforum LAtERjBVS ab Vnitat-e incipientibus^ (3 ordi- 
ne natiiraliufque c^d 10000* progredierittbuf :%,ondin\, i 6 /2* 
A Tabic of ten thoufand Square numbers^ namely of all the 
Square Numbers bet-ween oand lOO milions 5 and of 
,their'<S'/W^i' or 1{oots: Which are ail the whole Numbers-betwcen 
o and ten thoilfand ; 8 iheets in foL 
The Concinnity of i o, 8 or 7. Centuries in each opening^may 
-fo l?le^?^e■■^0HTe fi':adci*5 ^^ye.a$->t-Q>invi-ce biai to-continue ihe 
Tab"€ 
