Experiments on the Color Sense. 
253 
We then took her from the box for a moment, removed the 
pink paper from around the false cocoon, and replaced her near 
it. She remained in the same place for fifteen minutes, lifting 
her head and glancing from side to side. She then began to 
move about, and coming within four inches of the blue paper 
ran onto it and remained there for ten minutes. She was then 
pushed up to the entrance of her nest and quickly ran in. A 
second artificial cocoon was then placed in an unused corner of 
the box and was surrounded with pink paper. 
July 5. We found vittata running about the box. She 
passed near the plain bunch of cotton and also near the pink 
paper without paying any attention to them, and finally ran 
onto the blue paper and crept into her nest. 
On July 6, 7, 8 and 9 she was gently pushed to a little dis¬ 
tance from the nest and then allowed to find her way back to it 
across the blue paper. In this way she became accustomed to 
being away from her nest, more or less, and sometimes stayed 
out for several hours, eating and drinking as though she had no 
maternal cares, but always returned to her eggs sooner or later. 
July 10. The spider being removed from the box, bright red 
paper was substituted for the blue around her nest, and the 
artificial cocoon in another corner was surrounded with blue. 
She was then put back into the box, but for three hours did not 
seek for her nest, remaining quiet at one side of the box most of 
the time and eating four gnats in succession. She was then 
touched with the end of a lead pencil, whereupon she ran di¬ 
rectly across a corner of the red paper, onto the blue, and 
up to the cotton. At the first touch, however, she left it en¬ 
tirely, and did not return to it. She wandered about the box 
for half an hour, crossing the red paper three times without 
noticing her nest. The fourth time that she came onto it she 
saw the nest, and running to it quickly, crept in. 
July 11. Found her in the nest and let her alone. 
July 12. She deserted her eggs and could not be persuaded 
to return to them. 
A-stia vittata, 2. On July 13 the spider laid her eggs and 
took her place under the web. She did not come out on the 14 
and 15 although gnats were put into the box. 
