1911 Encyclopædia Britannica, Volume 20… (1911)
“ Among the best and most important paintings executed by Palmer during his later years was a noble series of illustrations to Milton's L'Allegro and II Penseroso. In 1853 the artist was elected a member of the English Etching Club. Considering his reputation and success in this department of art, his plates are few in number. Their virtues are not those of a rapid and vivid sketch; they aim rather at truth and completeness of tonality, and embody many of the characteristics of other modes of engraving — of mezzo tint, of line, and of woodcut. ”
