double-refined

I. F. "Nay, Friend, I belong to earth—from thy flight descend not lower:  as your old fashioned friend, I feel interested in your surface wanderings; but let your double-refined poetry and romance go 'to the D—.'"  (Scenes Beyond the Western Border, December 1851)

 Revised in the 1857 book as follows:

Friend. — Nay, stick to the surface now; only "to the d — l" with your double-refined poetry and romance.  (Scenes and Adventures in the Army)

  

I. F.  "There are noble minds, who would pronounce much of that extravagant—
too double-refined for any application."  (June 1852)

"Drop Tacitus. His subtlety is falsity, To him, in his double-refined anatomy of human nature, is well applied the Scripture saying--'There is a subtle man, and the same is deceived.' Drop Tacitus. Come, now, let me throw the book overboard."  (The Confidence-Man)