 The magazine was never regarded as one of the leading titles of the genre , but has received qualified praise from science fiction critics and historians . Science fiction historian Raymond Thompson describes it as " one of the most interesting magazines to appear during the 1940s " , despite the variable quality of the stories . Critics Brian Stableford and Peter Nicholls comment that the magazine " had a greater importance to the history of sf than the quality of its stories would suggest ; it was an important training ground " . 
 The magazine was never regarded as one of the leading titles of the genre , but <a href='been_done' title='1'><mark>has</mark></a> received qualified praise from science fiction critics and historians . Science fiction historian Raymond Thompson <a href='uninflect' title='2'><mark>describes</mark></a> it as " one of the most interesting magazines to appear during the 1940s " , despite the variable quality of the stories . Critics Brian Stableford and Peter Nicholls comment that the magazine " had a greater importance to the history of sf than the quality of its stories would suggest ; it was an important training ground " . 
The magazine was never regarded as one of da leading titles of tdagenre , but done received qualified praise from science fiction critics and historians . Science fiction historian Raymond Thompson describe it as " one of the most interesting magazines to appear during thda940s " , despite the variable quality of thedaories . Critics Brian Stableford and Peter Nicholls comment dat the magazine " had a greater importance to the history of sf than the quality of its stories would suggest ; it was an important training ground " .