Physiology of the Antennce. 



55 



costs many times as much. Were I obliged to part with 

 either, the latter would go. 



I require my students to do a great deal of dissecting, 

 which they enjoy very much and find very valuable. 1 

 would much rather that my boy should become interested 

 in such study than to have him possessor of infinite gold 

 rings, or even a huge gold watch with a tremendous 

 charm. Let such pleasing recreation gain the attention of 

 our boys, and they will ever contribute to our delight and 

 not sadden us with anxiety and fear. 



The antenn£e (Fig. 8, a, a) are the liorn-like jointed 

 organs situated between, or below and in front of, the large 

 compound eyes of all insects. They are sometimes short, 

 as in the house-fly, and sometimes very long, as in crickets 



Fig. io. 



Antenna of Bee much magnijied^ 



s Scape. t Tracheie, 



/ Flagellum. n Nerves. 



and green grass-hoppers. They may be straight, curved, 

 or elbowed. In form they are very varied, as thread-like, 

 tapering, toothed, knobbed, fringed, feathered, etc. The 

 antennse of most Plymenopterous insects are elbowed 

 (Fig. lo). The long first joint in this case is the scape, 

 the remaining joints (Fig. io,y) the flagellum. A large 

 nerve (Fig lo, w) and a trachea (Fig. lo, t') enter the 



