History of Astronomy - Atoms, Photons and the Nebulium Affair by Tony Sizer
We heard about another great Victorian amateur, William Huggins.
He not only built his own observatory, but also did much of the foundation work in spectroscopy. He drew the absorption and emission lines that identified the elements in NGC 6543 (The Cats Eye Nebulae) back in 1864.
Tony gave a great introduction to the science behind spectroscopy, as well as enlightening us about the first man to do such work, who nobody remembers!
Keep going all amateur astronomers!