His claims were still unsatisfied.

His watch at home underwent many more trials.

Dr.Maskelyne, the Royal Astronomer, was charged with being unfavourable to the success of chronometers, being deeply interested in finding the longitude by lunar tables; although this method is now almost entirely superseded by the chronometer.
Harrison accordingly could not get the certificate of what was due to him under the Act of Parliament.

Years passed before he could obtain the remaining amount of his reward.

It was not until the year 1773, or forty-five years after the commencement of his experiments, that he succeeded in obtaining it.