bemgakogcrEerltfi»©^^»^©»/, and nothing clfebut the 
fmreJirmoilimidJlmm, as was fhewn above, holding no-^ 
' thln^oiSsi'lpBmr^ bitumen^oTwaUr^ or any thing that is 
di^rent or heterogeneous to it felf, that can be dilated ot 
fkparated, it is in ao poffibility indeed of being hf ahle td 
the/r^ J which may indeed pafi through it, as we fee it 
does when 'tis made red bet , but can carry nothing from 
it i but fnch accidental filth as has been put upon it^ or 
accrewed by afeing. 
And thus Gentlemen I have run through the feveral 
branches laid down above, according to the capacity of 
the fabjeB^ and my felf ; wherein it 1 have done well, 
you have your deftre ; if ill, you fee I have not Icrupled to 
haizaiid my reputation, to IcrvQ my Frundf; fo that I hope 
you will believe witlioiit a that I really am. 
Tour mofl humble 
Servant, R. P. 
Short 
