Chapter

 1 VI  |     window was not of lenticular glass like those on shipboard,
 2 VI  |         much limited.~“Break the glass,” said Prudent, “and perhaps
 3 VI  |       result.~“It is unbreakable glass!” said Evans.~It appeared
 4 VI  |      though the pane was made of glass toughened on the Siemens
 5 VII |     saloon, and above them all a glass house in which stood the
 6 VII | port-holes filled with toughened glass, which has ten times the
 7 VII |       the resistance of ordinary glass. Beneath the hull was a
 8 VIII|          man at the wheel in his glass cage, his eyes fixed on
 9 IX  |          the helmsman was in his glass cage. Why was there a look-out?
10 XVII|        mate.~Robur asked for the glass and attentively observed