"The Death and Burial of McDonald Clarke" added to Poems in Periodicals

I've added the page image and transcription of "The Death and Burial of McDonald Clarke," first published in the New York Aurora on March 18, 1842, to Poems in Periodicals. I've revised the headnote, index page of the list of poems, and the bibliography accordingly. Janel Cayer and Vanessa Steinroetter proofread the transcription.

~Liz