Virtually from the beginning, McCay innovated with the forms of his chosen media. He varied the size and shape of comic strip panels for dramatic effect, as in the second instalment of "Little Nemo" (October 22, 1905), where the panels grow to adapt to a growing forest of mushrooms. Few of McCay's contemporaries were so bold with their page layouts. Near-contemporary George Herriman with "Krazy Kat" was the most notable example, but it was not until a generation later that cartoonists such as Frank King with "Gasoline Alley", Hal Foster with "Prince Valiant", and Roy Crane with "Captain Easy" attempted such daring designs on their Sunday pages.