In 1805 he offered Pitt his resignation after Addington was given a seat in the Cabinet .
Canning returned to office in 1804 with Pitt , becoming Treasurer of the Navy .
In 1805 Canning offered Pitt Canning 's resignation after Addington was given a seat in the Cabinet .
Canning returned to office in 1804 with Pitt , becoming Treasurer of the Navy .