Blish, van Vogt, and the Uses of Spengler
Mullen, R. D. "Blish, van Vogt, and the Uses of Spengler." Riverside Quarterly 3 (Aug. 1968): 172-86. Sections on Blish rpt. as Afterword to J. Blish's Cities in Flight (q.v. under Fiction).
On Oswald Spengler's theory of cyclical history in the Cities in Flight stories, q.v. under Fiction. See in this Category, D. Ketterer's, " . . . Spenglerian Space Opera."