[ S 8 + ] 
and therefore I think we have fufficient Reafon to 
conclude that their Meafures were certainly taken 
very near the Truth. 
John Ellicott. 
XII. Several Papers concerning a new Semi- 
Metal, called Platina; commimicated to 
the Royal Society by Mr . Wm. Watfon. 
• F.R.S. 
- O'' I ' t *J. •' 
I. 
Extract of a Letter from William Brownrigg 
M.D. F R. S. to Wm. Watfon F. R. S. 
.. r , . - i. ■ • ■ > 
Dear Sir , Whitehaven , Dec. 5, 1750. 
Read Dec. 13. TT rAKE the Freedom to inclofe to you 
I 75 0, JL an Account of a Semi-metal call'd 
R latino di Pinto ; which, fo far as I know, hath 
not been taken notice of by any Writer on Mine- 
rals. Mr .Hilly who is one of the moft modern, 
makes no mention of it. Prefuming therefore that 
the Subjeft is new, I requeft the Favour of you to 
lay this Account before the Royal Society , to be 
by them read and publifhed, if they think it deferv- 
ing thofe Honours. I fhould fooner have publifhed 
this Account, but waited, in hopes of finding Lei- 
fure to make further Experiments on this Body with 
fulphureous and other Cements 5 alfo with Mercury, 
and feveral corrofive Mcnftrna. But thefe Experi- 
ments 1 fhall now defer, until 1 leatn how the above 
is receiv'd. The Experiments which I have related 
were feveral of them made by a Friend, whofe Ex- 
1 aftnefs 
