28 
THE HEAD OF THE BEE. 
(Figs. T4, A and b, c c) are brought into play. By 
means of the muscular action of the rod (Hyatt, 70) 
the ligula is turned so that the hollow part of the 
spoon sweeps over the surface, and the branched hairs 
Fig. 13. — Section of Tongue enclosed by 
Maxillae and Labial Palpi. 
(Fig. 12, s) take up the most minute quantity of liquid. 
This is in turn transferred by the other hairs by 
capillarity to the groove on the under side, which is 
now turned uppermost. The connexion of the spoon 
with the ligula is here very small and is slightly 
hollowed, greatly facilitating the transfer. If the 
Fig. 14. — Section of Tongue. 
quantity of liquid is sufficiently large, both the tubes and 
the groove are brought into use, but if the quantity is 
very small and not sufficient to fill them, the central 
groove may only be used. The liquid then finds its 
