Oh, so it is still necessary to ban the novel of Jules Verne "The Mysterious Island", there is really a good recipe for dynamite and nitroglycerin. As a child, I dreamed of repeating it.

YYY: I have a note in the book that says that the recipe in the novel itself is not very accurate. And then follows a detailed explanation of what is not there, and how it should actually be. It was well translated in Soviet times.