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DESCRIPTION OP ILLUSTRATIONS. 
FIG. 
52. Diagram of stomach mouth and prolongation. — oeso- 
phagus; b, honey stomach; c, stomach mouth; d, pro- 
longation; chyle stomach; A, position of stomach 
mouth when the bee is collecting; B, position when bee 
is ejecting brood food 
53. Drone organs. — a, testes; b, mucus glands; c, ductus 
ejaculatorius ; f, spermatozoa; bean; pneumo- 
physes 
54. Section of abdomen of queen. — b^ d^ abdominal 
rings ; E, ovary ; x, oesophagus ; M, honey stomach ; 
D, chyle stomach; R, colon; A, anal opening; Sq sheath; 
S/, sting ; s, spermatheca ; H, appendicular glands ; 
G, ganglia ; gb, poison bag 
55. Ovaries of, A, queen; B, fertile worker; C, worker 
ovaries; b^ oviducts; c, common oviduct; d, sper- 
matheca ; e, vagina ; bursa copulatrix ; tube con- 
necting spermatheca with oviduct 
56. Ovarian follicle 
57. Development of bee. — a, section through egg; <2, chorion; 
b, vitelline membrane; c, vilellus; d, ventral surface; 
e, dorsal surface; head; 0, tail; B, egg, natural size; 
c, embryo; f, procephalic lobe; g^ h, ?, fossae; k,l) w, 
rings of thorax; D, upper end of egg, showing micro- 
pyle; E, chorion; F, chrysalis; G, larva 
58. Diagram showing ganglia in various stages of develop- 
ment. — A, embryo; B, the brackets show the ganglia 
that coalesce at a later period ; H, head ; r, thorax ; 
Ab, abdomen ; C, ganglia in adult ; a, b, head ; c, d, 
thorax; e,f,g^ h, 2, abdomen ... 
59. Silk glands. — A, a, reseivoir; /q intima; secreting 
cells; B, section of secreting portion of gland; c, sec- 
tion of reservoir 
60. Cyclopie. — Head of w^orker in which the two eyes are 
fused into one 
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