Samuel Taylor Coleridge — Verses Trivocular

Of one scrap of science I've evidence ocular. A heart of one chamber they call unilocular, And in a sharp frost, or when snow-flakes fall floccular, Your wise man of old wrapp'd himself in a Roquelaure, Which was called a Wrap-rascal when folks would be jocular. And shell-fish, the small, Periwinkle and Cockle are, So with them will I finish these verses trivocular.