 Walpole 's debt to Henry James is discernible in The Duchess of Wrexe ( 1914 ) and The Green Mirror ( 1917 ) , but in the view of J B Priestley the two most potent influences on Walpole were the highly contrasting ones of Trollope and Dostoyevsky . Other critics noted the Trollopian influence ; in 1923 Arthur St John Adcock commented : 
