David Main's Treasury of English Sonnets (1880) cited Herrick in its explanatory notes.
He knew the work of a wide variety of modern practitioners of the sonnet, from Charlotte Smith, whose English sonnets first inspired him in early youth to try the form, (25) to Wordsworth, whose "Lines Written Upon Westminster Bridge" he admired.
Main's Treasury of English Sonnets, which was the most scholarly and the most successful of these anthologies, printed no fewer than ten of Clare's sonnets (as against thirteen by Keats, sixty-two by Wordsworth, and fifty-seven by Shakespeare).
For example, in John Dennis's English Sonnets: A Selection (1873), Samuel Waddington's English Sonnets by Poets of the Past (1882) and David M.
In A Treasury of English Sonnets (1880), Clare's "The Last of April" is printed on the same page as John Keble's "Spring Flowers.
Jennifer Ann Wagner in A Moment's Monument: Revisionary Poetics and the Nineteenth-Century English Sonnet
(1996) was among the first to discuss the outburst of what the New Monthly Magazine in January 1821 termed "sonnettomania," a disease much like "the bite of rabid animal" that had recently affected English poets and for which no cure had yet been found: "born with the latent heat of inspiration, the os magna sonaturum, they must (il faut) scratch head, bite nail, and sonnettize.