6THE BEES WITH POINTED TONGUES
17THE VAGARIES OF COLOUR AND STRUCTURE IN THE SEXES
7LEAF-CUTTING BEES
18THE DISTRIBUTION, RARITY, OR ABUNDANCE OF VARIOUS SPECIES
8OSMIA AND ITS HABITS
19ON BEES' WINGS
9A COLONY OF ANTHOPHORA
20ON BREEDING ACULEATES, ETC.
10BEES AND POLLEN-COLLECTING
21ON COLOUR
11ON BEES' TONGUES, AND HOW THEY SUCK HONEY
22THE DEVELOPMENT OF INSECTS FROM THE EGG