oxyhydrogen microscopes

Noun

oxyhydrogen microscope (plural oxyhydrogen microscopes)

1. A 19th‑century projection microscope that used an intensely bright oxyhydrogen flame to throw greatly magnified images of microscopic specimens onto a screen for audiences.
   • Some declared it was a yard long; others were frightened, and instantly dropped it, and all were as much astonished, and made as much shouting and gesticulation, as children at a pantomime, or at a Christmas exhibition of the oxyhydrogen microscope. And all this excitement was produced by a little...1869, Alfred Russel Wallace, The Malay Archipelago, volume II, London: Macmillan and Co., page 64