In November 1941 the magazine switched to biweekly publication, then monthly publication in July 1942. The most significant change occurred in September 1943 when the magazine not only changed from pulp to slick paper but began to shift away from its all-fiction content. Over the next few years the fiction content grew smaller (though still with the occasional short-story writer of stature, such as P. G. Wodehouse), and the "men's magazine" material expanded. By the late 1940s, it had become associated with the men's adventure pulp genre of "true" stories of conflict with wild animals or wartime combat.