C S07] 
made of anneaVdlron^ of a futable bignefs for a Weik^ it 
would not fucceed by any manner of means I could rea« 
dily think of; nor have I much reafon to think it will,, 
after the moft mature deliberation, either in Wire of 
Silver or Gold ( though I dare not pronounce the con- 
trary till trial has been made) the nature of them ail 
feeming not much different, as to this particular. If 
therefore it be neceffary, that we muft have a perpetual 
Wetk for the making fuch perpetual Sepulchral Lamps^ 
as were ufed by x}s\q Anciejits, I think we mull ftick to 
the firft kind, made of Linum Asbeftinum^ ot Salaman-- 
ders'VJodi'^ which if it any way can be fappliedwith a 
perpetual Oyl ^ as I fhall prefently fliew you ) I hope you 
will not judg me far from effecSting the matter. Now 
that there may be fuch ^ Bitumen ot inexhaujlible Oyl^ 1 
fliall not need to trouble you with the Tejiimonies ok' old 
Authors, or carry you into Italy, or other forreign parts : 
for will you but allow me an inconfumahlefVeik^, I - will 
carry you no further than Pitchford in Shr op/hire^ whQTc 
there is zNaphta or liquidbitumen Specimen vih.Qttoi 
I have here to fliew you) that conftantly iffues forth 
with a Spring there, and floats upon the Water: this I 
would have feparated before it joynes with the water in- 
to a duBus of its own, and io conveyed to the place ^ 
thought moft convenient for fuch a Lamp, into which 
it fhould as perpetually diftill, as it does now into the 
fountain ; which I doubt not but you will allow may be 
done, without any great matter of difficulty : and ifio^ 
we have an Oyl, as everlajhng as our Weikj nor need ws 
to fear any extinUion if inclofed in a Tomb or Vault un- 
der ground, in never fo damp or moift a places it being 
th.^CharacleriJiic of 2i bitumen, to burn beft where th^re 
is moifture, as is evident upon affufion of water upon 
Sea-coaL And this is one way I have thought of, that 
inch dip erpetual Sepulchral Lamp might poffibly be con- 
trived.But if you will be foftrid with mejas not to al ow 
E this 
