= 
1883.] Experiments with the Antenne of Insects. 1239 
time, I put it out on the table and let it run around and fly about 
till I was satisfied it was all right. I then cut off one of the an- 
tenne, cutting away about two-thirds of it. I noticed that it 
immediately let the stump drop, but otherwise it did not seem to 
care at first. But I soon found that it began to feel dizzy and to 
fly very unsteadily, and when taken into the middle of the room 
and let fly toward the window would not always strike it, but 
would hit the wall often several feet to one side or the other. I 
then cut off the other antenna in the same way. It soon began 
to grow weaker and weaker very rapidly and to fly very labori- 
ously, but was still able for some moments after to reach the 
light of the window, though in a very random manner. On 
reaching the window for the last time, it buzzed up and down the 
pane a few times but soon ceased and began to walk back and 
forth on the sill in a very restless manner, stopping every few 
inches to rub the stumps of its antenne with its fore feet and 
seeming to be in great pain. Soon it became too weak to walk 
except with apparently great exertion. Finally it crept into a 
small hole between the sill and the plastering of the wall. On 
being driven out again it crept under a small stone lying on the 
sill, and seemed to be trying to get away from the pain, remind- 
ing me of the motions of an ox which has been struck a hard 
blow on the horn. When taken from the window again it did 
Not try to find its way back or even to fly, but crawled feebly 
over the floor, growing weaker all the time, and if thrown into 
the air would buzz and fall at once like so much wood. But all 
this time I noticed its power of direction, as far as I could see, 
Was not at all impaired, as far at least as walking was concerned, 
and that its sight was as good as ever; for whenever I put my 
hand, or any moving body, near it, say three feet, it would imme- 
-diately roll over on one side, tuck the head under the body as if 
to protect the mutilated antennz, and at the same time throw up 
its legs as if to ward off my hand. At length it crawled up the 
table leg and sat down on the first bead of the leg, some six 
inches from the floor, and tucking the head under as far as pos- 
Sible, seemed to give up in despair. In about ten minutes I got 
Some sugar for it, but it was so far gone already that when I put 
the sugar to its mouth I came very near knocking it off the table 
leg with the straw on which I had the sugar. It took no notice 
of it €xcept to push it away and wipe off with its feet what I put 
