-28- 
SH K VF VP 
Figure 2. — Reproductive tract of queen daudad of the -ovanies, extended, 
with Bide removed to show relation of valvefold to median oviduct and 
vagina: BP, Bursal pouch; K, keel of median oviduct; POV, paired ovi- 
duct; SH, shelf of median oviduct; SM . sting membrane; SPD, spermathe- 
cal duct; V, vagina; VF. valvefold; VO, vaginal orifice; ^, vaginal 
passage. ( From La ;L , dlaw ) . 
Figure 3. — Complete insemination equipment, showing manipulating apparatus 
under microscope with queen in place ready for injection of semen, jar 
for giving additional carbon dioxide treatments, and carbon dioxide cyl- 
inder with pressure regulator attached. 
