THE EP ISTLE, &c. 
or infome decree Incrajfated 5 their l^ydrojlatUal tendency^ 
Weight, or State 3 that it muU give abundant fatisfaSion to fut 
fureA^es^eafi them of much fains ^ and allow them the wore leijkre 
and manifold Ajjijlances for further Procefes^ Imufl add^ that 
in the Treatifes ^ Firmnefi and Fluidity of Co\A^ and the Ther- 
mofcopical Adeafures of Warmth and Frigidity^ of Colours and 
ILighty you have given us good grmnd for our Reji , and for a- 
fair proJpeB into the Labyrinths of Nature, Bejidesy Imuji tal^e 
the freedom to ask^^ Who did ever fufpeU the Ambient Air of ha* 
ving fuch a force to confolidate firmnejs in fiubbornandunfiexihle 
Bodies y as you havejl)ett>'d it to have} Who fujpcSed ^ that Air : 
(the purejim can obtain fo near the fur face of the Earth ) Jljouidf- 
fo widely Expand it fe If when at fo me liberty or Jhould endure^, 
fich Mechanical Cov[\prt{liot)s} 7hat the moji Solid Bodies we 
have amongH us JJwuld emit Jpacious Atmofpheres ^ and that the 
parts of our firmeji Rockj and Jewels are not in an abfolute Re^ 
in their long lajling duration } What divining Imagination or 
ConjeBure did admit of all thefe points for fund Philofophy , till 
you taught us to feel it in our Scales^ and to fee it with our Eyes } 
But I muji not here heap up together your many cojily and affi^ 
duQUs Labours : I mufi fop my Pen^ and confider more what yow^ 
Ears can h^ar^ than what is due to your Merit, Only this ImuJl 
here avouch^as one amongji a great number of good WitneJ/es, that' 
many of the moji learned Forrainers ( to fay nothing now of war* - 
thj Englifhmen ) do fo highly value all the Treatifes you have pub^ 
hp?ed^ that they do importunately defire^ your Deskj wereforth^ 
%s>ith emptied into the public k^Light ^ and carefully rendred into 
their l^own Languages^ 
Sir, all that value true Worth and true Philofophie^ are hound 
io pray for the Recoverie of your Health and Strength ^and for your 
long Life, andperpetual Increafe in all Happinefs , So does he^wbo 
efieems the mofi ufeful things in Human Societie^to be Knowledge 
and VertuCp ^combined in you^ and who is 
SIR, 
Your Very Humble and Faithful Servant, 
UEm. OLDENBVRG Soc.Reg.Secr^ V 
