(27) 
might be made ill a Summer : but my fervants have been 
rcmifs in what was ordered ^ I muft crave your patience 
till next year. 
An Accouni o/Micrographia,(9r the Phyfiological De- 
fcriptions of Minute ^od^ics^made by Magnifying 
Glafles. 
The Ingenious and knowing Author of this Treatije, Mr. 
Robert Hook^^ confidering with himfelf ^ of what impor- 
tance a idAthivilHjjlorji of Nature is to the eftabiifhing of a 
folid Syficme o[Natfiral Philofophji ^ and what advantage 
Experimental and Mechamcal knowledge hath over the 
Philofophy of difeourfe and dijputation ^ and making it, 
upon that account,, his conftant bufinefs to bring into that 
vaft Treafury what portion he canj hath lately publiftied 
a Specimen of his abilities in this kind of ftudy^ which cer- 
tainly is very welcome to the Learned and Inquifitive 
world^both for the Nerp difcoveries in Nature^ and the New 
Inventions o( Art, 
As to the firmer^thc Attentive Reader of this Book will 
findj that there being hardly any thing fo fmall^ as by the 
help of Micro/copes^ to efcape our enquiry , a new vifible 
world is difcovered by this means 3 and the Earth (hews 
quite a new thing to us ^ fo that in every little particle of 
its matters we may now behold almoft as great a variety 
of creatures, as we were able before to reckon up in the 
whole Vniverfe it felf. Here our Author maketh it not 
improbable, but that, by thefe helps the fubtilty of the 
compofition of Bodies, the ftrufture of their parts, the va- 
rious texture of their matter , the inftruments and man- 
ner of their inward motions, and all the other appearan- 
ces of things, may be more fully difcovered ^ whence may 
emerge many admirable advantages towards the enlarge- 
ment of the A&ive and Mechamck^ part of knowledge^ 
becaufc we may perhaps be enabled to difcern the fecret 
D 2 workings 
