CONTENTS. 



LETTER I. 



INTRODUCTORY 



110 



LETTER II. 



OBJECTIONS ANSWERED 



That Entomology is a trifling pursuit 



That Entomologists confine themselves chiefly to nomenclature 



That it leads to cruelty 



LETTER III. 



METAMORPHOSES OP INSECTS 



States of Insects (egg, larva, &c.) 

 ( Orders of Insects) 

 Theory of Metamorphoses 

 Object of Metamorphoses 



1130 



- II 



20 



- 27 



3141 



- 33 



- 34 



- 36 



- 40 



LETTER IV. 



DIRECT INJURIES CAUSED BY INSECTS (AFFECTING MAN PERSONALLY) 42 77 



1. Insects which make man their food 



Pediculus humanus, &c. 



Acari 



Larvce - 



Fleas - 



Chigoes 



Harvest bugs, Ticks, &c. 



Bed Bugs, &c. - '* 



Insects giving an electrical shock - 



Horse Flies, &c. 



Mosquitoes, &c. 



2. Insects which attack man from revenge or fear 



Bees, Wasps, &c. - 



a 2 



4363 



- 43 



- 46 



- 51 



- 52 



- 53 



- 54 



- 55 



- 56 



- 57 



- 58 

 6367 



- 63 



