146 Psyche [October 
The cage was now turned 180°, all other conditions remaining 
unchanged. The Chionea at once demonstrated its positive 
phototropism by running in a straight line towards the light. 
Arrived at the glass-covered part, however, it turned aside without 
going under it. After a little while, it was seen to go under this 
glass cover for a short time, but soon came back and returned across 
the whole uncovered field, coming to rest at the edge of the other 
glass cover, which was now on the darker side of the cage. Left 
to itself, the Chionea would sometimes tumble down from the 
wire-netting of the cover, and run about for awhile on the snow or 
earth. However, it always soon climbed the glass wall again, and 
took to its former place in the open part of the cover, which, 
exposed to the draft, was probably colder than the snow. 
To test out whether Chionea really preferred the open region 
because of its being colder, I warmed my hand by means of a hot 
electric light bulb, and could, by coming near it with the heated 
surface of the hand, drive the insect from the open field of the 
cover into the space under the glass cover. IJ concluded that the 
Chionea, as a rule, seeks out the coldest place it can possibly find. 
The experiment was then closed. 
On November 25, in the morning, the Chionea was found sitting — 
at the under surface of the glass cover which was covered with 
hoar-frost. The snow in the cage was partly melted, and the 
resulting humidity had formed an ice-crust on the glass cover. 
The Chionea seemed perfectly at ease while resting on this icy 
surface. 
Towards noon I brought the insect out into the open air to the 
edge of the balcony, on which fresh snow had fallen. It was 
watched but otherwise left entirely to itself, and was seen running 
over the snow alongside the whole railing of the balcony, the di- 
rection being against the wind (positive anemotrop?). It kept 
itself somewhat on the inner side of the railing on the side of the 
house, but pursued its course in a nearly straight line. Only once 
it turned to the outer side and had to be driven back to prevent its 
falling from the balcony. Three times it went to the left (the side 
of the house-wall), going below the edge and to the underside of the 
snow-layer covering the railing, remaining quiet for a short time, 
but each time returned soon to the surface of the snow and con- 
tinued its walk. Though on these three occasions it came near to 
