the less the two chemists did not initially publish their findings. Instead, the
knowledge spread by more informal ways; Bergman mentioned it in a letter to
Macquer in July the same year (before he met Scheele) and Scheele mentioned it in
Fig. 13.4 Gahn’s notes from his meetings with Scheele in Spring 1770. Carl Wilhelm Scheele’s
Archive, Centre for History of Science, Royal Swedish Academy of Sciences. Photo Anders
Lennartson
Fig. 13.5 White phosphorus, typically yellowish due to small amounts of red phosphorus, is a
highly flammable and toxic substance that must be kept under water to avoid autoignition. Photo
Anders Lennartson
198
13 Scheele in Uppsala
knowledge spread by more informal ways; Bergman mentioned it in a letter to
Macquer in July the same year (before he met Scheele) and Scheele mentioned it in
Fig. 13.4 Gahn’s notes from his meetings with Scheele in Spring 1770. Carl Wilhelm Scheele’s
Archive, Centre for History of Science, Royal Swedish Academy of Sciences. Photo Anders
Lennartson
Fig. 13.5 White phosphorus, typically yellowish due to small amounts of red phosphorus, is a
highly flammable and toxic substance that must be kept under water to avoid autoignition. Photo
Anders Lennartson
198
13 Scheele in Uppsala