“As the evening drew on, my interest waned. I went through gallery after gallery, dusty, silent, often ruinous, the exhibits sometimes mere heaps of rust and lignite, sometimes fresher. In one place I suddenly found myself near the model of a tin-mine, and then by the merest accident I discovered, in an airtight case, two dynamite cartridges! I shouted ‘Eureka!’ and smashed the case with joy. Then came a doubt. I hesitated. Then, selecting a little side gallery, I made my essay. I never felt such a disappointment as I did in waiting five, ten, fifteen minutes for an explosion that never came. Of course the things were dummies, as I might have guessed from their presence. I really believe that had they not been so, I should have rushed off incontinently and blown Sphinx, bronze doors, and (as it proved) my chances of finding the Time Machine, all together into nonexistence.