Science Fiction Quarterly began in summer 1940 as, not unnaturally, a companion magazine to Science Fiction, alias The Original Science Fiction Stories; at the start the editor was Charles D. Hornig, but the following year Robert A. W. Lowndes took over. There was a break between spring 1943 and May 1951, but the magazine continued until its February 1958 issue - just about the last of the pulps to roam the stands.
This is the May 1952 issue, with a cover by Milton Luros. The "feature novel" is "The Shining City" by Rena M. Vale - her only magazine appearance, though she had four sf novels published between 1965 and 1973. There were "two unusual novelets," "When In Doubt, Mutate!" by E. Hoffman Price and "Extra-Secret Agent" by H. B. Fyfe. And there was room for two short stories, as well: "The Luckiest Man Alive" by William Morrison, and "We, The People" by Ward Moore, who is probably best remembered for his 1953 novel Bring the Jubilee.
"It Says here" combined the editorial and the letters section, as many sf magazines did. The fourth in a series of "Science in Science Fiction" articles by James Blish looked into "the psychological story," while Eugene W. Nelson wrote about "The Black Magic of Yesterday." And Lowndes himself handled the "Readin' and Writhin'" book review column, which this time was primarily concerned with Lester del Rey's non-fiction book It's Your Atomic Age.
Add the usual pulp-style ads, and you've got quite a beguiling package. No wonder the magazine continued for longer than most of its flashier pulp contemporaries.