I'm familiar with all these titles. Three of them: The Worm Ouroborous, The Night Land, and A Voyage To Arcturus, were republished in the late '60s and early '70s in an effort to follow up on the popularity of LOTR. It took a few years for the modern fantasy market to ramp up, and books like these helped calm the hordes screaming for more. I never made it through any of them. I wish he'd mentioned the Gormenghast novels -- those I enjoyed, especially the first.