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PREFACE. 
The large amount of subject-matter and the compara- 
tively limited space at my disposal render it impossible 
that the present volume should assume the most useful 
form, viz. that of a complete Dictionary. Neither is it 
desirable that it should be a mere Grammar, consisting 
solely of dry rules. It must, therefore, be somewhat 
on the scheme of a Delectus ; combining extracts from 
the biographies of individual objects with princi- 
ples of classification and hints for obtaining further 
knowledge. 
It is difficult, if not impossible, to introduce the 
“popular element” (so attractive a bait for study) 
into a book treating on Beetles. Unlike butterflies 
and moths, they are not familiar objects; or, if so, are 
not considered friendly : nor is much known of their 
earlier stages, on account of the difficulty of rearing 
them in confinement ; damp, darkness, and quiet being 
necessities for their development. Neither do they, 
like bees, ants, &c., exhibit any wonderful instincts in 
their perfect state : so that little remains to notice 
beyond their actual structure; which is, luckily, so 
varied and adapted to their numerous ways and means 
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