Looking for Rowley's poetry

In April 1770, Chatterton left for London, determined to make it on his own merits as a writer. But four months later, on August 24, 1770, unable to find any work, without money, and near starvation, he penned a farewell poem: "Have mercy, Heaven! when here I cease to live / And this last act of wretchedness forgive." He then poisoned himself with arsenic. He was only seventeen years old.
On n'est pas sérieux quand on a dix-sept ans...
 

Henry Wallis, La Mort de Chatterton, 1856