3 8 . ▁" New sc ast ", ▁Marvel ▁Science ▁St ories , ▁April / May ▁ 1 9 3 9 . ▁" The ▁Dev il ▁F lower ", ▁Fant astic ▁Advent ures , ▁May ▁ 1 9 3 9 . ▁" The ▁Mor ons ", ▁Ast ounding ▁Science - F iction , ▁June ▁ 1 9 3 9 . ▁" M yst ery ▁of ▁the ▁Col laps ing ▁Sk ys c rap ers ", ▁Ama zing ▁St ories , ▁August ▁ 1 9 3 9 . ▁" Light ning ▁St rik es ▁Once ", ▁Marvel ▁Science ▁St ories , ▁August ▁ 1 9 3 9 . ▁" Power ▁Plant ", ▁Ast ounding ▁Science - F iction , ▁November ▁ 1 9 3 9 . ▁" Ne ut ral ▁V essel ", ▁Ast ounding ▁Science - F iction , ▁January ▁ 1 9 4 0 . ▁" High - Fre quency ▁War ", ▁Ast ounding ▁Science - F iction , ▁February ▁ 1 9 4 0 . ▁" Under se a ▁Pr ison er ", ▁Ama zing ▁St ories , ▁February ▁ 1 9 4 0 . ▁" G rav ity ▁Island ", ▁Super ▁Science ▁St ories , ▁March ▁ 1 9 4 0 . ▁" De put y ▁Cor respond ent ", ▁Ast ounding ▁Science - F iction , ▁June ▁ 1 9 4 0 . ▁" Life ▁Inside ▁a ▁Wall ", ▁Science ▁F iction ▁Qu arter ly , ▁Summer ▁ 1 9 4 0 . ▁Re print ed ▁in ▁The ▁Moon