xxii CONTENTS. 
LETTER X. 
Dmecr Benerits periven rrom Insects 
As serving for the food of man - 
As affording Medicines - - 
Dyes - - - 
Wax = - - 
Honey - - - 
Silk - - - 
LETTER XI. 
Arrection oF INsEcTS OR THEIR Youne 
1. Insects which perish before their young come into existence 
Butterflies - - = 
Ichneumons - - - 
Sand Wasps, &c. - - - 
Wild Bees - - - 
Beetles - - - - 
2, Insects which atiend their young when hatched 
Mason Wasp - - ~ 
Saw Fly - - - - 
Wood-boring Beetle - - 
Field Bug - - - 
Earwigs - - - - 
Spiders - |) - = 2 
Ants - - - - 
Wasps - - - z 
Bees - - - - 
Humble Bees - - - 
Termites - - - - 
LETTER XII. 
Foop or Insects - - « 
Insects which feed on vegetables - 
animals - - 
both vegetables and animals 
Time of feeding - - - 
Instruments of nutrition - - 
Proportion of food consumed - - 
Power of abstinence - - 
LETTER XIII. 
Foon or Insects—continued - - 
Stratagems employed in procuring it - 
Threads of Spiders - - 
Webs of House Spiders, &c. - 
Nets of Geometric Spiders - 
Tage 
171—191 
- 171 
- 178 
- 181 
- 185 
- 187 
- 188 
192—215 
192—201 
- 192 
- 193 
- 195 
- 197 
- 198 
202—215 
- 202 
202 
2038 
203 
203 
204 
- 206 
- 210 
- 212 
- 213 
- 214 
227—244 
227—244 
- 227 
= 229 
« 231 
