Part,  Chapter

 1      I,  I    | reasoning for himself when on duty for the Company-a true machine
 2      I,  III  |      I should have felt it my duty to accompany you myself
 3      I,  X    |       one else to fulfil this duty of humanity.”~“I agree with
 4      I,  XVIII|      was assigned a task, the duty of each one was laid down
 5      I,  XXI  |    the Company, and it is our duty to preserve them from injury
 6     II,  VI   |       always ready to do your duty, but you will not go alone.
 7     II,  VII  |     by the consciousness of a duty to perform, bravely struggled
 8     II,  X    |       that you have done your duty, that you are not responsible
 9     II,  X    |      to-day I have felt it my duty, in order to spare you useless
10     II,  XII  |     Mac-Nab, “he has done his duty, and we will do ours.”~“
11     II,  XIII |     that he had only done his duty in making this attempt to
12     II,  XIV  |    The Lieutenant felt it his duty once more to take the latitude