CHAPTER X.
PROPOLIS.
Derivation of Word—Sources—Nature—Purposes—Quantity Collected—Adaptation of Materials to Wants of Bees.
CHAPTER XI.
PHYSIOLOGY OF THE BEE.
Nervous System—The Head—Eyes—Compound and Simple—Uses and Powers—Sir John Lubbock's Experiments—The Antennæ—Structure and Uses—Mouth—Detailed Description.
CHAPTER XII.
HEARING, TASTE, AND SMELLING.