Richard Chenevix Trench, Dean of Westminster, published On some Deficiencies in our English Dictionaries. Being the Substance of two Papers read before the Philological Society, Nov. 5 and November 19, 1857. Trench's speeches laid down the desiderata for a new English dictionary based on historical principles. Two months later the Philological Society resolved that A New English Dictionary, as it was first called, should be compiled, readers were called for, and the project began.
In 1860 Trench published a revised and enlarged second edition of his pamphlet, including "A Letter to the Author from Herbert Coleridge, Esq. on the Progress and Prospects of the Society's New English Dictionary."