INDEX 



Odor, specific, in recognition, 14; 



of nest as giving recognition, 



221. 



Oils, as ant food, 81. 

 Olfactory sense, 148. 

 Opportunism, 47. 

 Opportunists, ants as, 35. 

 Orange-trees preserved by ants, 



113. 



Orasema coloradensis, 233. 

 Orasema viridis, 233, 234. 

 Orb weaver's eggs, 2. 

 Overseers, absence of, 40. 



PACHYCONDYLA, 108. 

 Pachycondyla harpax, 240. 

 Panics, spread of, 178. 

 Parasites on ants, 233, 236, 282. 

 Parasitic formicaries, 259. 

 Parasol or cutting ants, 86. See 



also Atta. 



Pasteboard ant nest, 31. 

 Patriotic feeling, supreme, 194. 

 Peace among men, 278. 

 Pear-tree psylla, 246. 

 Pennsylvania harvester, 118. 

 Pheidole commutata. 108. 

 Pheidole instabilis, 116, 203, 233, 



236. 



Pheidole kingi, 233. 

 Pheidole pennsylvanica, 27, 118. 

 Philadelphia Academy of Natural 



Sciences, 95. 

 Philosophy of ants, 51. 

 Physical condition affected by 



work, 51. 

 Physical expression as language, 



129. 



Pine leaves in nests, 30. 

 Piping of bee queens, 137. 

 Plant culture, 98. 

 Plant-lice, aphides, described, 243. 

 Play, ants sporting, 186, 187. 

 Pleasures of, 185. 

 Plesiobiosis, double nests, 257. 

 Pluck in small ants, 197. 

 Pogonomyrmex crudelis, forms of, 



204. 

 Pogonomyrmex occidentals s, 10, 



20. See also Occident ant. 

 Police administration, 14. 

 Polyergus ru/escens, 153; lucidus, 



264. 



Polyrachis jerdonii, 34; spinigera, 

 34; dires, 34. 



Portage of pebbles, 25, 26; im- 

 plements for, 37. 



Post-petiole in stridulation, 147. 



Providing work for young, 169. 



Pseudogynes, 231. 



Pseudomyrma belli, 36. 



Pseudomyrma (gracilis), 199. 



Psychic contagions, 178. 



Pteratic language, loO, 132. 



Public sentiment, 15. 



Pulvillus, 54. 



QUEEN, 268, 271; cutting ant 

 founds mushroom garden, 96; 

 mother, 156; surrounded by 

 guard, 157; eggs of, 158; among 

 workers, 159; winged, of honey- 

 ant, 173; not seen in wars, 201. 



RAID, or march, of cutting ants, 

 88, 89, 119; raiding in column, 

 273. 



Rain, effect on work, 37. 



Rations, supplying the com- 

 munal, 77 et seq. 



Recognition, 14, 15, 101, 104; in 

 wars, 220; by odor, 223. 



Red ants, house pests, 82. 



Repletes, 106. 



Republic, the ideal, 171. 



Resemblance to spider's work, 35. 



Roads, 119; of Formica rufa, 59. 



Romanes, George J., 150. 



Roofing habit, 24, 25. 



Roziies gongylophora, 98. 



Rufous ants of Britain, 58. 



SALIVARY secretions, 44. 



Sanitation and personal benev- 

 olence, problem of, 279 et seq. 



Santiago de Cuba, cutting ants 

 of, 90, 91. 



Scavengers, ants are, 81, 288. 



Schaufuss ant, 264. 



Schimpfer, Prof. A. F. W., 37. 



Scott, Sir Walter. 58. 



Scouts, or pioneers, 83. 



Scudder, Prof. Samuel C., 133, 



Self-control, 51. 



Self-feeding, 109. 



Senses of ants, 134. 



319 



