440 
EBR 
communica ion among bees, 156, 
313 
BRARD, M., his observations 
as to the origin of ants’ nests, 
31 
Eciton, the eye in, 11 
— drepanophora, their order in 
marching, 21 
— erratica, soldiers among, 21; 
their covered galleries, 65 
— legionis at play, 29 
— vastator, scldiers among, 21; 
their covered galleries, 65 
Economy of labour among ants, 
experiments as to, 240, &c. 
Eggs of ants described, 6; laid 
occasionally by worker ants, 35 ; 
by worker bees and wasps, 36 ; 
these always produce males, 37 ; 
as to diterence of sex in, 40; 
of aphis, tended by ants, 69; 
and hatched in captivity, 71 
Electric light, experiments on ants 
with, 200 
Emery’‘s observations on Colobopsis, 
20 
Enemies of ants, 26, 67 
Evolution of colour in flowers, 308 
Experiments, as to the adoption of 
a queen by ants, 32; as to di- 
vision of labour among ants, 23, 
44, 324; as to their care of 
aphis-eggs, 70; on Claviger, 90 ; 
as to the treatment by ants of 
injured companions, 94, 107; 
with chloroformed ants, 98, 
108-111; with drowned ants, 
99; with buried an’s, 102; as 
to treatment of stranger ants, 
104, 119, 124. 333; as to mode 
of recognition, 108; with in- 
toxicated ants, 111 118; as to 
power of recognition among 
ants, 119, 333; and among bees, 
126; with ant-pupe removed 
from nest, 129-147; on sister- 
ants brought up separately, 147- 
INDEX. 
FOO 
152, as to power of communi- 
cation among ants, 160-181, 
344-376 ; among bees, 274, 401; 
among wasps, 311, 415; as to 
perception of colour, 186; with 
coloured solutions, 194; with 
spectrum, 198 ; with the electric 
light, 201; as to ultra-violet 
rays, 200-220; with magnesium 
spark, 207 ; as to sense of hear- 
ing among ants, 222; among 
bees, 290; as to sense of smell 
among ants, 233, 268; among 
bees, 288 ; as to ant intelligence, 
237; as to economy of labour, 
241; as to ingenuity among 
ants, 243-6; as to their- power 
of finding their way, 250; as 
to means of tracking, 168, 383, 
387; as to sense of direction 
among ants, 260; among bees, 
278; and among wasps, 321 ; as 
to guidance of ants by sight, 
266; as to the bekaviour of 
bees in a strange hive, 281; as 
to their compassion, 286 ; as to 
their colour sense, 291; and 
their preference of certain 
colours, 302; as to colour sense 
among wasps, 316 
Expulsion of aut from nest, 98 
Eyes of two kinds in ants, 10; 
compound, 182; various de- 
velopments of, 183 
IACETS of the eye in ants, 
number of, 11; described, 182 
Feeding, loss of instinct of, 76, 83, 
87 
Fertilisation of plants by insects, 
50, 291 
Fighting among ants, different 
modes of, 17 
Flowers, their defences against 
unprofitable insects, 51-55; in- 
fluence of bees on their develop- 
ment, 291; paucity of blue, 308 
Food of ants, 25, 63; its effect in 
