TABLE OF COXTEXTS. 



PAGE 



III. The Quaternary, or Pleistocene Ants 173 



IV. Similarity of Baltic Amber Ants to Living lialtic Species. . 174 

 V. Absence of Polymorphism among the Workers of Tertiary 



Ants 174 



CHAPTER XI. 



THE HABITS OF ANTS IN GENERAL. 



I. The Three-fold Activities of Ants in General 176 



II. Nutritive Activities of Ants. Six General Sources of Ants' 



Food 177 



III. Protective Habits of Ants 178 



i. Care of the Young. 2. Care of One Another. 3. Care of 

 the Nest. 4. Methods of Defence and Attack. 5. Means 

 of Preventing Mixture of Alien Colonies. 



IV. Reproduction among Ants 182 



i. Terrestrial Mating. 2. The Nuptial Flight. 3. The Found- 

 ing of the New Colony. 4. Social Parasitism. 5. The Num- 

 ber of Individuals in a Colony. 



CHAPTER XII. 



A NT- NESTS. 



I. General Architectural Characteristics 192 



II. Methods of Construction 194 



III. Change of Abode 195 



IV. Classification of Ant-nests 198 



V. Nests in the Soil 199 



i. Small Crater Nests. 2. Large Crater Nests. 3. Mound, or 

 Dome and Masonry Nests. 4. Nests under Stones. Boards, 

 ?tc. 



CHAPTER XIII. 

 ANT-NESTS (CONCLUDED). 



VI. Nests in the Cavities of Plants 207 



i. In Preformed Cavities. 2. In Woody Plant-tissues (a) 

 Carpenter Ants ; (b~) Gall Ants. 



