James's prefaces to the New York edition of his work (1907-9) offer plain-speech terms like "picture," "scene," and "center of consciousness" to describe the compositional effects he most valued. This rough vocabulary only whets the appetite of Percy Lubbock, James's most influential follower, who almost twenty years later is driven to write "The Craft of Fiction"(1921) because of his felt "want of a received nomenclature" (90) in the Anglo-American study of fiction. The Russian tradition derives its classificatory practice from a scientific paradigm that would have been anathema to James and Lubbock; but the catalogues generated by Vladimir Propp and Shklovsky are, like the work of Anglo-Americans, derived from the text-based, empirical examination of specific novels and actual narrative practices.
Actually I'm not sure about the meaning of some phrases.I would be pleased if you could answer them.
Dose "classificatory practice" mean: methods of writing stories which are classified?
And I haven't got any idea about "scientific paradigm."
And the last sentence in bold is unclear to me especially the meaning of "text-based".
The Novel: An Anthology of Criticism and Theory 1900-2000
Please correct me if I am wrong.