Lyddie argues with herself so she will keep working to make money for her family. On page 97, it says, "Think of them as bears she'd tell herself. Great, clumsy bears. You can face down bears." This is Lyddie telling herself she can handle the machine.
Lyddie was avoiding the radicals that were planning on signing the petition. On page 94, it says, "She liked Diana, really she did, yet she found herself avoiding her friend as though radicalism were something catching, like diptheria."
Amelia and Betsy argue over whether Betsy should sign the petition. On page 91, it says, " 'We're all working like black slaves, is what,' said Betsy. 'I've half a mind to sign the blooming petition .' 'Oh Betsy, you wouldn't!' Amelia lifted her nose out of the handkerchief, her eyes wide."