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Link: • Carl Linnaeus to Nicolaus Joseph, baron von Jacquin, 16 October 1764 n.s.
Dated 1764 d. 16 Octobris. Sent from Uppsala (Sweden) to Banska-stiavnica (Slovenia). Written in Latin.


Linnaeus has received Nicolaus Joseph von Jacquin’sJacquin, Nicolaus Joseph, baron von
(1727-1817). Dutch. Botanist. In
1755 at the order of emperor Franz I of
Austria he went to the Antilles and
South America. In 1763 he became
professor of mineralogy and chemistry at
Chemnitz, later professor of botany at
Vienna and director of the botanical
garden at Schönbrunn. Correspondent
of Linnaeus.
letter of 10 September 1764Letter L4261, which he considers most severe. At first, he hesitated to reply, but since that would be to break a friendship, he changed his mind. He wants to know whom Jacquin means when he says that he has heard that Linnaeus has deserted a friend by not answering letters. Nevertheless, he will try to explain his causes and hopes Jacquin can understand them without undue temper.

Linnaeus has not the time to answer everybody, and many write to him without really wanting anything; they just want to continue the exchange of letters. He writes more letters than his 25 fellow professors together. He is overrun with work, and if his wife had not managed the house, everything would have been chaos. But he has never willingly omitted answering a true friend who is a real scientist, although he at times has considered slowing down his pace of work a little.

Linnaeus had been taken ill on May 2 and did not leave his bed until June 25. He is still not quite well. – When he got Jacquin’s work through Christian Friis RottböllRottböll, Christian Friis
(1727-1797). Danish. Botanist and
physician. Professor of medicine at
Copenhagen. Linnaeus’s student.
Correspondent of Linnaeus.
and the plants from Laurens Theodor GronoviusGronovius, Laurens Theodor
(1730-1777). Dutch. Naturalist. Senator
of Leiden. Son of Johan Frederik
Gronovius. Correspondent of Linnaeus.
, he answered what he could from his country estate [at Hammarby], where he had just a few books. He did not return to the town until a week ago. – He stresses that he has done what he should do towards Jacquin.

Linnaeus lists a lot of social and professional tasks for the Uppsala professors, which he must attend to, in addition to his lectures and other things. He is quite exhausted when he goes to bed in the evening, and he can no longer be careless about his health. Everybody is surprised he can do so much; it is only Jacquin who is not satisfied.

On looking back, Linnaeus has verified that he sent Jacquin letters of 4 January 1764Letter L3366, 1 April 1764Letter L3397, and 20 August 1764Letter L3434.

Some specimens and seeds enclosed in the letter are commented upon. Especially, he mentions a new genus Forskåhlea, the seeds of which should be sown in the beginning of spring in the greenhouse.

Linnaeus has copies of Genera plantarum [...] editio sextaLinnaeus, Carl Genera
plantarum [...] editio sexta ab auctore
reformata et aucta
(Stockholm 1764).
Soulsby no. 305.
and Museum s:ae m:tis Ludovicae Ulricae reginaeLinnaeus, Carl Museum s:ae
m:tis Ludovicae Ulricae reginae

(Stockholm 1764). Soulsby no. 1095a.
for Jacquin. He will send them as soon as possible.



a. original holograph (UUB, G152g). [1] [2] [3] [4]


1. Caroli Linnaei epistolae ad Nicolaum Josephum Jacquin (1841), p. 79-81   p.79  p.80  p.81.