However , he began to devote his efforts into extensively editing the work , and Madoc was not ready for publication until 1805 .
Southey finally completed the poem as a whole in 1799 , at the age of 25 .
Southey began to devote Southey 's efforts into extensively editing the work , and Madoc was not ready for publication until 1805 .
Southey finally completed the poem as a whole in 1799 , at the age of 25 .