 Many of the stories involved contemporary science without any imaginative elements—for example, a story in the first issue turned on the use of a bolometer to detect a black girl blushing—but there were also one or two science fiction stories in every issue.The title was changed to "Amazing Detective Tales" with the June 1930 issue, perhaps to avoid the word "scientific", which may have given readers the impression of "a sort of scientific periodical", in Gernsback's words, rather than a magazine intended to entertain.At the same time, the editor—Hector Grey—was replaced by David Lasser, who was already editing Gernsback's other science-fiction magazines.