C iSi ) 
forafinuchas I obftrv'djthat, befides the Tiinicle, it was in fume 
places provided only with two or three threds ; and it was more- 
over filled with /4^/5 and had the before-mention*d hollownefs. 
Topafs on to other objefts ; I have obferved foQievvhac about 
Salt, of which! cook a litrleand put it on the brim of a Tin diflj, 
and fo let it melt in my celkr , and having expofed that Brim to 
the hoc Air, or the Fire, I had it turn 'd into Salt again; and then 
found, thatfomeof thofe Saline parts confided ofglobuls, others 
of Conical fmooch particles, others were pyramida! and fmooth, 
fome perfeftly quadrangular, and finooth, fome long-ways qua- 
drangular j in both of which latter I faw again fome very fmall 
fquares. 
More-over, I havealfo viewed fome of the Engli(h Earth which 
is yellowifih, and fome that is of a deeper yellow then that, which 
is found becween Harwich ^nd London^ and wherewith fome Land 
isoiily as 'twere cover'd ; Which yellowifti Earth our Potters of 
Porcelan- ware make ufe of , when they want that Flamlfli Earth 
that is got dbont TiOUrmy. This Englifli Earth I found to be made 
up of very fineglobuls, which by my eftimate I judged to be many 
thoufand times fmal ier than a common grain of Sand, after a Geo« 
metrical computation, by which the axis of a grain of Sand is ma» 
ny hundred times bigger than the of one of the particles which 
compofe the fa id Englifli Earth. 
I have likewife examined the lately mention d FlamiJIj Earth, 
which I found to confift ofglobuls, yet fomewhat fmailer than 
thofe of the Englijh Earth. 
Again, viewing that fort of Earth, which we call CUypx which 
there is great ftore about this Town of Delft^ andelfewherein this 
Country, that is made up of yet finaller globuls than both ihe fore- 
going forts, and 'tis by our Porcelan-nial^rs called Black Earth, 
being of a dark gray colour* The globuls of this Earth are not 
fo heavy as thofe of thedefcribed Engliflj and Elamifii Eart h; and 
'tiseafily changed into Glafs ; and they make very flrong Pots of 
the fame : But being baked, 'tis red, and therefore not fit for Por- 
celan , but 'tis blended with the Englilh and FJamifii Earth , to 
give a ftrong and good found to our Porcelan. Mean while I did 
not find this black Earth fo pureas the other, it being nuKt with 0- 
ther part icles which I did not think to be Earth,buc ratherefteem'd 
them to be rotten wood^ mixed withfand and fandy particles, thi t 
were above a hundred times fmalier than fand. 
• About two Leagues from this Town there lyes an Inland-Sea , 
called^ 
