Pages 213-247 of the Dell Edition; Pocket Books pages 173-203; about 70 percent of an ebook
Page 216, "The victims of the worst tragedies...." I thought of Luna Wilson when I read this.
Page 232, The King in Yellow, Robert Chambers, available here.
Page 237, "perfectly trustworthy and rather formidable." A name check for the Ken Campbell who mounted the theater production of Illuminatus?
Page 242, "Great-grandfather was a bit odd," the John Babcock of the Historical Illuminatus chronicles?
UPDATE II: Blogger has been fixed, and links are now up again for the Masks Discussion.