- "Thomas Bewick:Illustrator, naturforsker og gravør" (1942)
- "A History of British Engraving" (1952)
- "The Five Centuries of Color Printing" (1967)
- "John Buckland Wright, gravør" (1974)
- "The Prints of William Camden Edwards" (1976)
- "The Wood-Engraving of Edward Calvert" (1981)
- "The Etchings of Hercules Brabazon Brabazon" (1985)
- "The Engravings of Samuel Palmer" (1990)
- "Illustrasjonene til Beatrix Potter" (1994)
Artikler
- "The Engravings of Thomas Bewick" (The Print Collector's Quarterly, 1930)
- "Some Engravings by John Bewick" (The Print Collector's Quarterly, 1932)
- "The Wood-Engravings of Thomas Bewick" (The Fleuron, 1932)
- "Tidlig nittende århundre fargetrykk" (The Print Collector's Quarterly, 1933)
- "The Mezzotints of David Lucas" (The Print Collector's Quarterly, 1934)
- "Graveringene til Robert Havell, Jr." (The Print Collector's Quarterly, 1935)
- "The Etchings of James Abbott McNeill Whistler" (The Print Collector's Quarterly, 1936)
- "Fargetrykk i London før den store utstillingen" (The Library, 1960)
- "The Engravings of William Holman Hunt" (The Burlington Magazine, 1960)
- "The Lithographs of Joseph Mallord William Turner" (The Burlington Magazine, 1961)