Linnaeus writes to Carl Gustaf TessinTessin, Carl Gustaf
(1695-1770). Swedish. Count, important
politician and patron of science and
art. He supported Swedish artists and
scientists and collected art, books and
natural history objects. He assisted
Linnaeus’s career in many ways. Married
to Lovisa Ulrica Tessin. Uncle to
Fredrik Sparre. Correspondent of
Linnaeus. to ask for his advice about publishing information about trade with the East mentioned in Fredrik Hasselquist’sHasselquist, Fredrik
(1722-1752). Swedish. Physician and
naturalist, explorer. Studied under
Linnaeus and Lars Roberg 1741-1749. Went
to Egypt, Syria, Palestine, Cyprus,
Rhodes and the island of Chios. Died
near Smyrna. Son of Magnus and Helena
Maria Hasselquist, brother of Andreas
Hasselquist. Correspondent of Linnaeus. travel book [Linnaeus refers to the Iter Palaestinum eller resa til heliga landetHasselquist, Fredrik Iter
Palaestinum eller resa til heliga
landet (Stockholm 1757). ].

Linnaeus also thanks Tessin for his support to Daniel RolanderRolander, Daniel (1725-1793).
Swedish. Naturalist and explorer.
Studied at Uppsala University under
Linnaeus. Went to Surinam in 1755-1756.
Correspondent of Linnaeus. , who is more capable concerning insects than anybody else in the country.

However his knowledge in botany and mineralogy is far from that high level. Although he learnt some from both disciplines, he never studied them, because when Rolander was staying at Linnaeus’s house, Linnaeus encouraged him only to study the insects.

Linnaeus also foresees a failure of the crops next year and refers to an essay he published some years ago, Plantae esculentae patriaeLinnaeus, Carl Plantae
esculentae patriae, diss. resp. J.
Hiorth (Uppsala, 1752). Soulsby no.
1648. , also published in Swedish by Lars SalviusSalvius, Lars (1706-1773).
Swedish. Printer, bookseller, publisher.
Correspondent of Linnaeus. [Plantae esculentae patriae, eller Wåra inländska äteliga wäxterLinnaeus, Carl Plantae
esculentae patriae, eller Wåra
inländska äteliga
wäxter (Stockholm, 1752).
Soulsby no. 1655. ], describing all the eatable wild plants that grow in Sweden. In the famine years 1736-1737, when such knowledge was absent in Sweden, many died after having used unsuitable plants.