GENERAL CHAKACTEKISTICS. 



11 



tagious are the sharp note of anger, the low Iium of frar, and the 

 pleasant tone of a swarm as they comraenoe to enter their new 

 hoiue. Now, whether insects take note of these vibrations as we 

 recognize pitch, or wlietlier they just distinguish the tremor, I 

 think no one knows." 



26. It is well proven that bees can smell with their 

 autenme, and Cheshire carefuUj' describes the "smell hol- 

 lows," not to be mistaken for the " ear holes," which are 

 smaller, but also located on the antenna. 



"In the case of the worker, the eight active joints of the an- 

 tenna have an average of fifteen rows, of twenty smell-hollows 

 each, or 2,400 on each antenna. The queen has a less number, giv- 

 ing about 1,600 on each antenna. If these organs are olfactory, we 

 see the reason. The worker's necessity to smell nectar explains 

 all. "We, perhaps, exclaim — Can it be that these little threads 



LONGITDDINAL SECTION THROUGH PORTION OF FLAGELLUM OF 

 ANTENNA OF WORKER. 



(Magnified 300 times . From Cheshire . ) 

 /, feeling hair; •-, smelling organ; ho, hollow; r, conoid or cone-shaped 

 hair; hi. hypoderraal or nnder-sMn layer; >i,u, nerves in bundles; ar, ar- 

 ticnlation; t', conoid hair, magnified 800 times. 



we call antennae can thus carry thousands of organs each requir- 

 ing its own nerve end? But greater surprises await us, and I 

 must admit that the examinations astonished me greatly. In the 

 drone antenna we have thirteen joints in all, of which nine are 

 barrel-shaped and special, and these are covered completely by 

 smell-hollows. An average of thirty rows of these, seventy in a 

 row, on the nine joints of the two antennae, give the astounding 



