< 4^51 ) 
Tatle ta ico thotifand SguareSs placed in the fame order. But 
Arichmeticiaiis wiH fee di\^ers adFaDtages, which would have 
been loft , if^here had been more or fewer lines in apag^ j or 
if the Centuries had not ftood entire in every aperture.. 
The two lafl: pages are fufficiently contained in p. 30^ which 
preceeds theaijf men were acquainted with the compendious 
way of writing in jfriinx. That fair edition of Aratus^ printed 
ihis year in fi^^/ifri^adjoins {ome fragments of Eratofthenes{who 
dyed almoft 1900 yearesago.) Among the re[i^ there is thel^. 
ginning of his Arithmetical vimm of odd numbers ^ to fliew^ 
which of them are incompofit {^a The iofs of ih^i mbrum was 
abundantly fupplied by ihtTabU of iocompoiic numberSj prin™ 
tfed at Ldfidon for lAt.Pm.i66% 5 as this Table is^ 
Thofeg laft pages have a Curioficyjperhaps not feen before.| 
viz. an accurate enumeration of all the Endings of numbers tru- 
ly Squara* Thofe «E?aim|;/ in figure are fix 5 ini^o figures, 
are zZim thne figures.are is-ipb in 4,figures3are 144: which^be- 
ing here fet down in their naturaj ..order, ftand there ready « 
difcover many long given numbers not to be Square 5 which o« 
ther wife could nothave been perceived to^be fuch till after e^s 
iraftion. 
But they alfo^give an OGCafion to tranfcribe here the three lajt 
Ikes of the laft page^ which arc thefe. 
Baving the two.thiee or (om'lajl figures of any Square nurnber^ 
^Ho exhibit as manyGfthehVi figures Qfits fide^i a new Queftioui 
^Ho which the juft anfwers are manifold and not obvious* A' 
%articnlMr Aemmt of them is ready for ihprefs^v^hm ittbalibe 
delired* 
In the mean time^thePubliflier^having Teen the laid Account 
' in the hands of the Author(DQaor Pell^) is able.for the clear- 
ing of thofe swords aJ}f^ers i^re ] to add ih^r ^ 
much- 
When the Qaeftion is.cenoerning cbe ^2 Cbmbioations, qo 
of them have 4 Anfwers a peice 5 "50 t^f thei^i haveje^.Cfc o 
thsmj J'O Anfwers. 
When the QueftioB:is. concerning the iy9Ternk) | too 
^^cjf thenxhave 4 Aufwers apeice .- ;0 of them haFe,each, 8 An- 
fwers i Twc^ ot them have, each ^ mi Anfwers ; five of theni^ 
have each 3 .20 AaCwers 5^ Twq %ave^ each of them 5, 4^ Aia- 
