^ard of tlieEarthjtecatifc the motion was retrograde^ this 
-lobe made Conca-ve towards t-he -Earthy fuitable to what hath 
been faid in the fame 1 heoryj becaiife that the motion of this 
C-otnecis dire^. 
^Accordiagto this Hypoth/f^ thdfe iaft daies, that the Clouds 
hlndf ed 12s trora (eeificr this Conietjie muft havc continued his 
coMrfe. towards the root ©f the Soathern horn or Taurus^ and 
having pafs'd the Ech'ptiqw between the ^t'h and 10^^ of Jpril^ 
4e mutt pafs ©n the top of Orieris head the overiiis Arm 
the 24^^ and at the end' of this-month he will be in the 
iVa^f.But it will be difficult hence forward to find hinvbecaufe 
of his fmallnefs.and the iightof the Moon* 
'Tis a^thing worth obfcrving^that this Comet keeps his c6uffe 
valmoft likethatof the it^Cometdf ^1665, and of another of 1577 
'oWerv d by Tj^^Jo, For they have pafs'd through almoft the 
Came Gonftellationsjthough this be more inclined Nord-wardj 
and cut the Ecliptique five or fix degrees^ more forward fhain 
that of 1665'. So thatitfeems, that in this place of the Heavens 
rfhere is^as 'twere, a ^^^/f^f ^2^5 for Comets* 
jif count of fame Bo^\s:. 
^J^^^KESlStEmrlA SOLID OEVM Alexan. Marchetti, in n 
:fim Acidemia Phil^Frdf^Excufum Florenci^ 166 j in tiin^ . 
^^'^His bookcame not long fince to ray hands It had been 
Jl promrfed fome years before under the Title of Calih- 
m ampliatuu But the Author now follows not the Steps of Ga* 
^//^^«^/,biu demonilrate^ all his Proportions another wayAuild- 
ieg alKopon this ground i Momenta C r avium proportionem hahent 
'mmpojipam e^ pTopwiionihus pmdermn ^ lor^itndimm: which is bis 
ifirftProportion* This Book being but Imall^and the fubjed ad- 
mitting of enlargement^ the Aiathor promifeth a larger Trea- 
^^cMe of the fame. 
Tabula numerorum $VADj{Ar01^M demsmilliurn, 
-cm ipfoTum LArEBjBVS ah Vnitate incipientibus^ ^ or di- 
ne naturaHufque adiQOoo.fYogredientihuf,''LonAm\, x6y2* 
/ Table often thoufand Square numbers^ namely'of all tht 
£\ '^uare Numbers between o and roo milions 5 and of 
■-^wSidcf or l{€ots: Which are all the vi^hole'Numbers -between 
o and ten tlioufand ; S^'&eets-iofoL 
-Tlie Goncinnity of lo^S or 7-Centuries-ii.Teach-0pemng,may 
ifojfleafedbme'Readefs #ye^as^to4nvitebim torcontiaueihe 
