4; To adwncethe Ar£ of tiDgidg whift Marbles^ {<^ss lm 
inakc the tioaiurc penetrate and colou^^ 
depth i and to endeavour to bring this way of colouring to as 
great perfcaion, as EnatticlliDg is , by Painting faces and 
Stories , and al| kind of JLandsykips and Perfpeiti ves upon 
white Marble with colours not deliWe by any thing, that does 
not deftroy the Marble* 
5. To take notice, v^htther Flint-fio^ef, to be met with ia 
great abundancein EngUnd^ are conftantly found in the Chal- 
ky rocksj that abound here in many places of the Kingdom 3 
they being oft encoropa fled with crufts of Ghalk? And whe- 
ther Chalk turns into Flints ? 
6^ Whether Brid^ walh do not make a room much whol" 
fomer, then Frecftone or Marble^ Bricks imbibing the rooift 
vapors of a room fothat they never fweat, as Marbles and 
fome Freeftone are found to do, by coagulatinjg the vapors 
into drops by the coldnels of their furfacc? 
7. To try the truth of W/r»»/»/ his Note, importing^ that 
the Romans anciently let their Bricks ftand to dry a whole 
year, fometimcs longer , before they were burnt : It being 
obfervable, that thole ftupendious remains of that ancient 
Amphitheater of Roman Work being all Bricks, near ^^«r- 
deaux, are ftillas firm as a Rock, excepting fuch places, as 
the rains and ftorms have fpoiled by getting in at top* 
Which may alfo be Icen in divers other old ftrufturcs in Ifaly^ 
Fr^«rtf,and clfe where* 
8. To inquire after the antient way of Plaiflering, ufed by 
the Romans, which to this day, where it hath not mei with 
violent knocking or breaking, is to be feen as free from cracks 
or crevices, and as fmooihand poliftit, as if it were Marble : 
Witnels their Aqueduds, whofe bottoms and fides were thus 
plaiftered, and particularly that, whereof fome yards are ftill 
to be found on the top of P<7«# de Gare neer Ni/ms^ for the 
fijpport of which that famous Bridge was built to carry water 
to the (aid Town. 
q], To tske nottcc of the rooft of Houfes and the floors 
of Rodiris iat fiem^^^ Wveiii witba kifld of Plafttli^^^ t^^ 
