By the late 1940's, PRIVATE DETECTIVE was featuring two black and white comic strips, as was prominently mentioned on the covers.  Sally the Sleuth, a former mainstay in the pages of both SPICY DETECTIVE and SPEED DETECTIVE, was the heroine of one of the strips (though she did quite a bit less stripping here than in SPICY DETECTIVE); Jerry Jasper, young socialite and crime fighter (where have we heard that before?) was the hero of the other.