212 
INDEX. 
albino, 167 ; destroyed in 
autumn, 9, 124, 13 1; from 
fertile workers, 131 ; have 
no father, 145; hybrid, 147; 
strongest are swiftest, 133; 
why so many produced, 131, 
132 
Drory, M. , 167 
Ductus ejaculatorius, 126, 128, 
Dufour, L., 62, 106, 1 12, 1 16, 
129; theory, 120 
Dujardin, 62, 66, 67, 69, 70 
Dumas et Milne Edwards, 173 
Duthiers, L., 74 
Dzierzon, Dr., 10, 120, 121, 
141, 143-145. H 7 > 148; 
theory, 120 
E 
Ectoderm, 154-156 
9- 136, 137, 145. 150, 153 ; 
chorion of, 136, 145, 154 ; 
germs, 135 - 137 ,. 150, 163 ; 
laying, 9, 14; micropyle of, 
145, 146; position of, during 
first three days, 10; retarded 
hatching of, lo, 157 ; sper- 
matozoa within, 145, 146 
Eggs, in ovarian tubes, 135, 
136; in ovary of queen all 
alike, 8 ; number of, laid by 
a queen, 14; total weight of, 
from one queen, 1 20 
Embryo, 153, 154 
Embry ogeny, 52, 160 
Endocardium, 56 
Endo-skeleton, 49 
Epidermis, 15, 162 
Epiglottis, 85 
Epiopticon, 100, loi 
Epi pharynx, or gum flap, 22 
Erichson, 89 
Evolution of sexes, periods of, 
13 
Excreta, in, 112 
Experiment illustrating flight, 
41, 42; of Huber on origin 
of wax, 169, 172; of Dumas 
and Milne Edwards, 173 
Expiration and inspiration, 73 
Expirations, rapidity and num- 
ber of, 55 
Exuvium left in cell, 12 
Eye, compound, 20, 98-104, 
158; not found in larva, 20, 
158 
Eyes, 20, 98; eucone, 100; 
crystalline cones of, 99, 100; 
function of, 104; of sexes 
compared, 20 ; simple, or 
ocelli, 18, 20, 98, 104 
F 
Faeces, voided on the wing, 
1 1 2; of queen, 112 
Feathery hairs, 16 
Fecundation, or fertilisation of 
queen, 8, 130-132, 141, 144 
Feeding brood, 10 
Feelers of sting, 80 
Feeling hairs, 16, 24, 35, 80, 91 
Femur, or thigh, 32, 34 
P'ertile worker food, 124, 151; 
workers, 9,124,131,150,151 
Fertilisation in confinement 
impossible, 130 
Fischer, G., 1 16 
Festoons of wax workers, 174 
Flagellum, 21, 89 
Flight, ascending and descend- 
ing, 43 ; experiments upon, 
40, 42 ; distance and rate of, 
46 ; preparation for, 40, 44, 
45; why impossible for young 
bees, 44 
Flying backwards and for- 
wards, 42 
