
Growing, Breathing, and Other Things 
covering begins to harden. Gradually 
it grows firmer and stronger. In less 
than an hour from the time the process 
began Mrs. Spinner is back in her web, 
proud, no doubt, of her bright new gown 
and her increased size. While the coy- 
ering is soft the Spinners continue to 
erow, then stop until they moult again. 
Moulting takes place every week or 
two when the spiders are young. As 
they grow older the process is repeated 
less frequently, until the spider is full- 
grown, when she wears the same dress 
for the rest of her life. 
Sometimes it happens that a Spin- 
ner loses a leg or a palp while moulting 
or by some other accident. But that 
does not mean that she must go limp- 
ing for the rest of her life. Luckily 
for her another leg grows on, and by 
the time she has moulted once or twice 
it is as good as ever. 
In order to grow, the Spinners must 
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