C 99 3 
f aas to Chew by the Effects the prafticablenefs of thh Inven- 
tion, mentions thereupon, That he intends very fbortly to 
try fomethingin that kinde, of the fuccefs whereof he de- 
clares to have good hopes. 
'Monfieur duSon, that excellent Mechanician, doth alfo 
at this very prefent employ himfelf in London, to bring To 
lefcopes to perfection, by' grinding Glaffes ofa Parabolical 
Pgure 3 by tbs means whereof he hopes to enable the Cu- 
rious ro difeover more by a Tube of one Foot long, or 
thereabout, furniflaed with Glaffes thus figured, then car 
be don© by any other Tubes of very many times more that 
length: The. fuccefs hereof will (its thought) Ihortly ap» 
pear.. 
An Advertifemmt ofa way of making more lively 
tZounterfaits of Nature in Wax, then are ex- 
tant in Painting : And of a new \inde of Maps 
in a low Relievo* Both praStif ?d in France. 
This was communicated by the Ingenious Mr . ; John Evelyn, 
to whom it was Cent from Vans in a Letter, as followeth : 
Here is in ©ur Neighbourhood a French-man, who makes 
more lively Counterfeits of Nature in tVax, then ever I yet 
faw in Tainting, ha ving an extraordinary addrefs in model* 
ling the Figures, and in mixing the Colours and Shadows? 
making the Eyes fo lively, that they kill all things of this 
Art I ever beheld * He pretends to make a vifit into Eng* 
Idndmth fome of his Pieces. 
, l have alfo feen a new kind© of Maps in low Relievo, or 
Sculpture : For, exam pie, thelfleof Antibe 9 uponafquare 
of about eight Foot, made of Boards, with a Frame like a 
Bi&ure r There is reprefented the Sea, with Ships and other 
ycffels Artifici ally made, with their Canom and Tackle of 
Wood fixed upon the furface, after a new and mod ad l- 
mirable mimner.The Rocks about the Ifland exa&ly form d 9 
as 
