CONTENTS. XXV 



I'age 

 LETTER XVIII. 



Perfect Societies op Insects — continued ... 348 — 355 



Wasps. — Htimhle Bees . - _ . . 348—355 



Wasps. 



Individuals composing the society - . - - 348 



Labours of workers - - . _ _ _ 350 



Storing up honey - - « . - - 350 



Sentinels .-..--. 350 



Humble Bees 



Individuals composing the society - - » - 351 



Employment of females . - _ - . 352 



Small females ..--_-- 352 



Parasitic Humble Bees ... - - 354 



Temper and disposition - - _ - - 354 



LETTER XIX. 



Perfect Societies OF Insects — continued _ . - 356 — 379 



Hive Bee ------ - 356—379 



Individuals composing the society .... 357 



Education of a new Queen - - - - - SCO 



Larvaa and pupa3 - - - • - - - 365 



Queen Bee ....... 366 



Combats of Queens . - - - . - 367 



First swarm conducted by the old Queen .... 368 



Treatment of young Queens ..... 359 



Devotion to the Queen ...... 370 



Loss of a Queen - - - - - - -371 



Fecundation of the Queen -...-- 373 

 Oviposition by the Queen -..--- 374 

 Swarming .....--. 375 



LETTER XX. 



Perfect Societies of Insects — concluded ... 380 — 403 



Hive See ------ - S80— 403 



Drones - . - - - - - - 881 



Workers - - - . - - - - 382 



collecting nectar - . - - - -383 



pollen - - - - - - 385 



propolis -.---- 387 



Distance of excursions ..-•-.. 388 



Scouts ......... 388 



Population of a hive - - - - - -389 



Transportation of hives .....-- 390 



VentilatioD - - - - - - 391 



