OR, MANUAly OP TSS, APIARY. 



157 



strength and lightness. Three pairs of minute barbs (Fig. 74) 



project like the barbs on a fish-hook, from the end of this awl. 



The reservoir connects at its base with the poison-sac and 



below, by a slit, with the opening (Fig. 74, N) made by the 



Fig, 



Sting with Lancets drawn one side, cross-section of Sting, and a Lancet, 

 much magnified. — Original. 



C Poison sac. M Tube from sac to <S' Reservoir. 



A Awl. reservoir. E,B Valves. 



P,J7 Barbs. ^,B Lancets. ^Hollow in awl. 



/,/ Hollows in lancets. 0,0 Openings from hollow T, 2" Ridges in awl. 

 T' Groove in lancet. in lancets. 



approximation of the three awls. The other two awls (Fig. 74, 

 B, S), which we call lancets, are also hollow (Fig. 74, /, /). 

 They are barbed (Fig. 74, U, U) much like a fish-hook, except 



