of note, for any thiflg elfe but honeft Moralities^ did negled the 
Maihematicks ? What free-hern Child^ or yet what fldve^ of any 
pronnifing hopes^ was not entered intothefe Difciplines , before 
they could number ten yeares of their Age. If thefe men would ad- 
didi their palats to the pure fountains, and not wander after every 
poluted ftream, then they would find more leafure for better 
things, to do fome good for themfelves and others : Then they 
would tafte the pleafure, and reap the profit of their old Rule^ 
Dulcim ex ipfe {onte , &c. 
And withal they would have better underftood their beft friends. 
Certainly ^ li: Ari(lotU had been fo happy, as to have enjo^^ed 
our Optuksy and other Inftruments of Arts, and fuch E^^gws as 
we now employ. He would have been quite of another fpirit than 
thefe are*, and would have acknowledged a greater variety and 
more curious contexture, and more brisk Mechamcks in the Infe- 
Biles y which were in thofe dayes />T'///^/^^than in all the Animals, 
that were then known, or than are yet to be found in a far wider 
circumference 5 arid would have confeft the produ6lions of our 
Fyrotechmcal Furnaces to excell all, that could be reafonably ex- 
peded from his own vafl Fiery Region. 
We fay heartily, R^ai Jri/lotley read him in his own ^tile?, 
read him entirely and fully 5 not feeding onelyon his Ulcers and 
Excrcfcencies 5 nor taking up your reft in his Vn-intel/igtl?ie Hea- 
^enSy Zi their Adamantine Gates ^ or about their Flaming Walls : 
Embrace his calm rayes^ and his d if- inter eflFed Reafonings: chufe 
his beft Vertues, examine and weigh all his Mathematical Illufti a- 
tions, defcend to his particulars : And then haften to our chrifti- 
^;^Philofophers, and they will forth- with acquaint you with the 
true Works and wonderful Contrivances of the Supreme Author ^ 
and with the Difcoveries, which by his indulgent Providence and 
his benigne Infpirations have been in former and later Age s afford- 
ed, for the bcnefit,and the llncercly grateful acknowledgmenrs of 
humane race, 
'Tis our main bufinefs, as well to retrive all 'valuable Antiqui- 
ties y as to fupply frefh Difcoveries : to recover good oU helps, 
as well as to devife Netp, All our Artificers aredefigned, and ap- 
propriated , to unlock all the Repofitories of Nature Todr. vv 
out her moft concealed Operations and Rarities, To produce them 
with 
