( 4 8y ) 
fpecifick Gravity of thefe Cry fills renders the cleaning 
it lefs troublefome, and lefs expenfive, than in any 
other Oar whatever. It requires no more, than that 
the whole Stuff be (lamped to a fine Powder, after 
which it is wafhed by a Water, whofe Force is fo 
moderated as to wa(h away only the lightefl Parts. 
This Stamping and Wafhing is repeated till the Oar 
is left exceedingly clean, and yields in Metal from 
20 to f§th, according as it is cleanfed from the Load, 
and as it is in its own Nature more or lefs free from 
Iron. 
Begging Leave to defer the Account of Lead and 
I am 
j uiy the lfV Tour very humble Servant , 
1728. 
♦ F. Nicholls. 
IV. A Method of raijing fome exotic 4 Seeds , which 
have been judged almoft impoffible to be raifed in 
England, communicated in a Letter to Dr. 
Douglas, Coll Med. Soc. honor ar. and S'. S. 
Dy Mr. Philip Miller, Gardiner to the Dhyfick - 
Garden at Chelfea. 
SIR, 
A ccording to my Promife, I here fend you an Ac- 
count of the Methods 1 have taken to raife the 
Coco-Nut , with the Succefs of each ^ which hath led 
me 
w 
