(2l8l) 
tbeCuriofity of Men by fliewing how much it hath been 
defeftive, ^;?^ Co encourage ic alio, by fliewing how much 
of Nature there remains yet undifcover'd.to recompeofe as 
well as to exercife our Induftry. 
Fromthe whole^che Attentive Reader will, befidcs the 
advantages that arc common to it with the formerly publiflit 
Tome, eaiily gather thefe /?^<r»//^rufes : Firjl^ that it may af- 
ford many Materials for the Hiftory of Nature; which 
chat it might the more plentifully do, the Author hath pur- 
pofely on (everai occafions added a greater number or 7^* 
/^(««Wjthan wereabfolutely neceffary for the making oat 
of what he intended to declare or prov"* .y^mji/y,ir may af* 
ford {ome inftruftions^ Advices and Intimations to prop 
moce the Practical or Operative part of Natural Phiiofo* 
phy in divers particulars^wherein Men have b^en either noi 
abie^or not follicitous to afliit the Curious. Thirdly^ it may 
enable Gentlemen and Schollars to converfe with TradeC 
nKn>and bsnefii themfelves ^and perhaps the Tradefmen 
too J by that Converfatipn ^ or at leaft, ii will qualify them 
to askqueftionsof Men that converfe with things and 
fomecinies to exchange Experiments with them. Fourthly 
saay ler veto beget a confederacy and an Union between 
parts ot Learning, whofe PofTeflbrs hav^ hitherto kept 
their refpeftive skills ftrangers to one aiK>rher.f and by that, ; 
means bring great Variety of Obfervations and Experi- 
ments ot differing kinds into the Nonce of one man, or of 
the fame perfons 3 a thing that may prove very a^dvantage* 
ous tov/ards the increafe of knowledge, Ftfthly^ it may - 
contribute to the refcuingof Nitural Philofophy trom that 
unhappy Impatation of Barrennefs, which it hath fo long 
lam under^aad which hath been, and ft ll is, fo prejudicial to 
it. And Laftly^nd principallyjitmay ferve by Pofitive Con- 
fidcratioes and Diredlions, to awaken the Generality of 
thofe that are any thing inqu fitive^ and both londiv excite 
and lomewhat affift theCurioficy of Mankind, from which 
alone may beexpedieda greater pn^^refs m IJfeful Learn* 
5;ng,and confequendy greater advanci^ges to mer^^than m the 
|)Tel.em State of Humane affairi will be eafily imagined,. 
