11.4.10 Andreas Pihl
Pihl [45] was born on February 26, 1759 in the Västmanland province. After
defending his thesis on arsenic, de arsenico, in 1777 he worked as a mining expert
in several Swedish mines, especially in Falun, where he came in contact with Gahn;
he is occasionally mentioned in the correspondence between Hjelm and Gahn [46].
He died in c. 1835.
11.4.11 Anders Schedin
Schedin was born in the Uppland province and defended a thesis written in Swedish
on the assaying of iron in solution in 1777.
11.4.12 Johan Peter Scharenberg
Scharenberg was born in 1759, the son of Johan Scharenberg, owner of the Raven
pharmacy in Stockholm and Scheele’s master during his years in Stockholm. Johan
Peter Scharenberg was about 10 years old when Scheele worked for his father, so
they were not likely to have discussed chemistry. He defended a thesis on water
analysis (Sect. 23.3) under Bergman’s supervision in 1778. Scharenberg went in his
father’s footsteps and became apothecary in Laholm in 1794, where his sister was
married to a priest [47]. He died in Laholm on March 11, 1800 [48].
11.4.13 Bengt Reinhold Geijer
Geijer [49] (Fig. 11.6) was born on November 10, 1758 at Bofors ironworks, the
son of ironmaster Salomon Gottschalk Geijer. He came to Uppsala as a student in
February 1776 and defended his thesis de mineris zinci (on zinc ores) in March
1779. He was accepted as auscultator at the Board of Mines the same year. From
1782 he was an assayer at the Board of Mines, but was also teaching mineralogy at
the land surveying office. During this time, he published four papers in the
Transactions of the Royal Swedish Academy of Sciences, including papers on the
use of oxygen in blow-pipe [50] and smelting experiments [51]. In 1796 he took a
position at Jernkontoret, the Swedish Steel Association, but in 1797 he bought
Rörstrands porcelain factory just outside Stockholm. He is regarded as one of the
main figures in Swedish industry in the early nineteenth century. From 1785, in
collaboration with count Erik Ruuth, he began searching for coal and heat-resistant
clays in Southern Sweden by drilling. At Rörstrands, he used both his chemical
knowledge to improve the process of porcelain production at the factory and
178
11 Bergman as a Teacher
Pihl [45] was born on February 26, 1759 in the Västmanland province. After
defending his thesis on arsenic, de arsenico, in 1777 he worked as a mining expert
in several Swedish mines, especially in Falun, where he came in contact with Gahn;
he is occasionally mentioned in the correspondence between Hjelm and Gahn [46].
He died in c. 1835.
11.4.11 Anders Schedin
Schedin was born in the Uppland province and defended a thesis written in Swedish
on the assaying of iron in solution in 1777.
11.4.12 Johan Peter Scharenberg
Scharenberg was born in 1759, the son of Johan Scharenberg, owner of the Raven
pharmacy in Stockholm and Scheele’s master during his years in Stockholm. Johan
Peter Scharenberg was about 10 years old when Scheele worked for his father, so
they were not likely to have discussed chemistry. He defended a thesis on water
analysis (Sect. 23.3) under Bergman’s supervision in 1778. Scharenberg went in his
father’s footsteps and became apothecary in Laholm in 1794, where his sister was
married to a priest [47]. He died in Laholm on March 11, 1800 [48].
11.4.13 Bengt Reinhold Geijer
Geijer [49] (Fig. 11.6) was born on November 10, 1758 at Bofors ironworks, the
son of ironmaster Salomon Gottschalk Geijer. He came to Uppsala as a student in
February 1776 and defended his thesis de mineris zinci (on zinc ores) in March
1779. He was accepted as auscultator at the Board of Mines the same year. From
1782 he was an assayer at the Board of Mines, but was also teaching mineralogy at
the land surveying office. During this time, he published four papers in the
Transactions of the Royal Swedish Academy of Sciences, including papers on the
use of oxygen in blow-pipe [50] and smelting experiments [51]. In 1796 he took a
position at Jernkontoret, the Swedish Steel Association, but in 1797 he bought
Rörstrands porcelain factory just outside Stockholm. He is regarded as one of the
main figures in Swedish industry in the early nineteenth century. From 1785, in
collaboration with count Erik Ruuth, he began searching for coal and heat-resistant
clays in Southern Sweden by drilling. At Rörstrands, he used both his chemical
knowledge to improve the process of porcelain production at the factory and
178
11 Bergman as a Teacher