Three of the four readings for Wednesday are now over there in the sidebar: two "Fragments" from MacPherson's Poems of Ossian and a poem by Chatterton. The fourth reading is in your poetry anthology: Chatterton's "Mynstrelles Song." You should print out the readings (they are very short!) and bring your anthology to class on Wednesday.
A word of advice about making sense of Chatterton's poetry: read it aloud. Don't try to muscle through to understanding it, just say the words aloud--declaim them to your cat or your housemate if you need to. All those strange clusters of consonants and arbitrary vowels will resolve themselves into meaning (and your cat/housemate will be edified).