Detroit News, March 28, 1931. This is a perennial news item throughout the Twenties and Thirties: Some credentialed highbrow wishfully announces for the millionth time the imminent death of jazz. Today, of course, jazz qualifies as cultural spinach of the highest nutritive value, and nobody listens to it but credentialed highbrows. Oh, the irony of it all.
P.S. I did not know that about cottonseed meal and trout.