Interesting cartoon, included on the DVD of "The Lost Skeleton of Cadavra". I especially like the way the color was used in the background art--very artistic for Columbia, whose cartoon department generally had a very low budget (and the results looked like it!)
I do wonder, however, how a certain... um, finger gesture... ever got past the censors. Granted, the gesture in question was seen a lot less frequently in 1937 than it is today. You'd think someone besides the animators would have noticed, though--especially since it's seen three times in the scene in question! And based on the context, I suspect that its inclusion was intentional, something the animators slipped in just to see if the censors WOULD notice!