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NATURALISTS LIBRARY. 
WORKS ON NATURAL HISTORY, &e. 
PUBLI&HEB BY 
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I. 
INTRODUCTION to ENTOMOLOGY; or Ele- 
nnnts of the Natural History of Insects, jiy W, Kihhy, 
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4 vols. 8yo. Plates and Portraits, L. 4. 
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MANUAL of the LAND nnd FRESH- WATER 
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LETTERS to a YOUNG NATURALIST on the 
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