Evidence for Fictional Nineteenth Century Science Journalism

Wondering how long scientific journalism has been around? Since at least the Nineteenth Century world of Sherlock Holmes. Holmes, in The Valley of Fear, when referring to a treatise by his nemesis Moriarty, notes that it’s “a book which ascends to such rarefied heights of pure mathematics that it is said that there was no man in the scientific press capable of criticizing it.” Presumably there was also scientific press in the real world.