Publisher:Arcadia House

Some books have a (small) number on them which isn't unique enough to be a catalog number. Given the apparent quality of these books it also seems unlikely to be a printing number. But (so far) no number has appeared to be large enough to NOT be a Month number, although "Power Sphere"'s printing date would indicate it's not that either.

Here's the list at the moment:
 * 1) 7 	Hyperspace, Jul 1966, $3.25, 188pp, hc 	R. L. Fanhope
 * 2) 9 	Crimson Planet, 1966, $3.25, 191pp, hc 	John E. Muller
 * 3) 10 	Barrier 346, 1966, $3.25, 191pp, hc 	Karl Zeigfreid
 * 4) 3 	Uranium 235, 1967, $3.25, 192pp, hc 	John E. Muller
 * 5) 4 	No Way Back, 1968, $3.50, 191pp, hc 	Karl Zeigfreid
 * 6) 6 	Power Sphere, Sep 1968, $3.50, 192pp, hc, cover: Herbstman 	Leo Brett
 * 7) 11 	Radar Alert, 1968, $3.50, 192pp, hc 	Karl Zeigfreid
 * 8) 8 	Survival Project, 1968, $3.50, 192pp, hc 	John E. Muller
 * 9) 9 	Exiled in Space, 1968, $3.50, 192pp, hc 	Pel Torro
 * 10) 6 	The Man From Beyond, 1969, $3.50, 192pp, hc, cover: Jonas 	John E. Muller
 * 11) 3     Galaxy 666, 1968, $3.50, 191pp, hc                Pel Torro
 * 12) 2     The In-World, 1968, $3.50, 189pp, hc, cover Herbstman             Lionel Roberts