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PREFACE. 
f IS hoped the Book now puhlified will 
he accepted favourably by the Curious, and 
particularly by thofe acquainted with the Ufes 
of the Microfcope, as it opens to their View 
an almofl inexhaufible Store of ObjeBs for that 
Jnfrument; and many who are Strangers to 
it, may, Pis like wife hoped, be excited by what 
they read here, to lend fome Attention to fuch 
of Nature's wonderful Produ&ions as cannot 
be known without it . Ehe earneft Wifh and 
T)efre of the Author is, that all People would 
fee with their own Eyes, and determine by their 
own Judgment, neither rafhly difbelieving 
what is here related becaufe it may feem 
furprizing 
