16 · The Titan · P. Schuyler Miller · na The Titan by P. Schuyler Miller, Fantasy Press, 1952; illustrated by George Schelling
an incomplete version was serialised in Marvel Tales in 1934/35.
75 · Planetoid 127 · Edgar Wallace · na The Mechanical Boy September 4 1924 - October 23 1924; illustrated by Leo R. Summers; illustration actually intended for “Black and White” by Marion Zimmer Bradley in the Nov 1962 Amazing.
6 · The Mirror of Cagliostro · Robert Arthur · nv; illustrated by Dan Adkins
adapted from Arthur’s TV script “The Prisoner in the Mirror” broadcast on Thriller 5/23/61.