190“Melted into air—”: in one of a small number of variants, the first rough draft continues: “And beings all went away—No good no universe in setting forth—Clom Fliday—Dead—” (OSU 2.2).
190“Well that’s about the closest way”: from here to the end was a typed insert that Burroughs pasted onto the long galleys (OSU 5.12).
190“July 21, 1964”: this was indeed the date on which Burroughs mailed Richard Seaver the corrected proofs of Nova Express.