The eggs on the floor and curtains were guarded with care. They
were dotted around promiscuously, and at first were clear and of
amber colour, but as the little caterpillars grew in them, they
showed a red line three fourths of the way around the rim, and
became slightly depressed in the middle. The young emerged in
thirteen days. They were nearly half an inch long, and were
yellow with black lines. They began the task of eating until
they reached the pupa state, by turning on their shells and
devouring all of them to the glue by which they were fastened.
They were given their choice of oak, alder, sumac, elm, cherry,
and hickory. The majority of them seemed to prefer the hickory.
They moulted on the fifth day for the first time, and changed to
a brown colour. Every five or six days they repeated the process,
growing larger and of stronger colour with each moult, and developing
a covering of long white hairs. Part of these moulted four times,
others five.
At past six weeks of age they were exactly as Mr.
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