exposes the lack of annotated editions of poetry in English, and justifies his own glossarial
practice by placing himself side by side with the 'learned of other nations':
Sherman reminds us, then, in early modern England, 'marking' one's 'words' was a physical act performed by a reader upon a book as well as one of mental concentration, and could even mean 'writing a glossarial
note or commentary', as well as simply underlining or otherwise indicating material of interest.
Parma Eldalamberon reprints all the extant versions of the poem and includes Tolkien's glossarial
comments for two of them.
Stephen Booth's helpful glossarial
explanation of Sonnet 15 can help further strengthen the point:
The Plays and Poems of William Shakespeare, with the corrections and illustrations of various commentators, comprehending a life of the poet and an enlarged history of the stage, by the late Edmond Malone, with a new glossarial
index, 3rd variorum ed.