Carl Wilhelm Scheele
In 1779 Gadolin moved to Uppsala University. In 1781, he published his dissertation "Dissertatio chemica de analysi ferri" ("On the analysis of iron"), under the direction of Torbern Bergman. Bergman founded an important research school, and many of his students, including Gadolin, Johan Gottlieb Gahn, and Carl Wilhelm Scheele, became close friends.