Invertebrates The-Terrarium 
Among the thistles in the corner, ten pendents of 
vivid green, bright with golden points, could be seen. 
They were the chrysalids of the Monarch, or milk- 
weed, butterfly. Among the cabbage leaves, were 
many of the yellow green eggs and several of the 
caterpillars of the cabbage butterfly. Among the 
sprays of oak in the corner, several oak caterpillars 
were feeding. 
Before many days had passed, the drama of life 
began. One by one, the chrysalids of the milkweed 
butterfly paled in color and, becoming transparent, 
showed through their whitened walls the orange- 
colored wings of the developing butterflies within. 
They then burst, freeing their gorgeous tenants. 
This happened until there were seven butterflies in 
the terrarium. As two of these proved discontented - 
with their new home, they were set free. The five 
others spent the little round of their aerial life seem- 
ingly happy and satisfied. They lived from three 
to six weeks and showed some individuality in their 
tastes and habits. Sometimes they chose the mossy 
corner for their resting place. On other occasions 
they preferred the netting at the ends and top of the 
terrarium. In fact, the netting at the ends of the 
terrarium was a source of pleasure to these butterflies, 
as it served as a,secure resting place and an agreeable 
and convenient pathway to the top. One of them 
spent nearly all its life on the thistles suspended from 
the top. These thistles were kept fresh for a long 
time by placing their stems in a large sponge which 
was frequently drenched with water. 
The butterflies showed some individuality in their 
eating also. Thistle, clover, goldenrod, nasturtiums, 
and honey-suckle were offered to them. The thistle 
and goldenrod were most frequently visited, and next 
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