Linnaeus sends now the fourth letter to Bernard de Jussieu’s after his return to Sweden, although he has not received an answer from Jussieu.
Linnaeus acknowledges how much he owes Jussieu, more than anybody else.
Linnaeus wonders why Jussieu does not answer. He has other friends, he mentions Johann Jacob Dillenius and Adriaan van Royen, but Jussieu is greater than these.
If Linnaeus can find out how and when he can send things to Jussieu, he will send some specimens of rare plants together with a number of recent publications: Hortus Agerumensis [Linnaeus refers to his edition of Johan Eberhard Ferber’s,Joannis Eberhardi Ferber [...] Hortus Agerumensis], Catalogus animalium Sveciae [Linnaeus refers to his “Animalia per Sveciam observata”], the second edition of Systema naturae [Linnaeus refers to the Naturae curiosorum Disocoridis secundi Systema naturae] and Fundamenta botanica [Linnaeus refers to the Caroli Linnaei [...] Fundamenta Botanica in quibus theoria botanices aphoristice traditur] and his talk on curiosities among insects [Tal, om märkwärdigheter uti insecterne].
Linnaeus has finished his second edition of Genera plantarum[Linnaeus means [...] Editio secunda], but it is not yet printed. Linnaeus will send it to Leiden for printing by the first ship this spring.
If Jussieu meets Claes Sohlberg, a student of medicine, he should forward greetings from Linnaeus. Linnaeus himself will tell Sohlberg that Catharina Fahlstedt has given birth to a daughter.
Linnaeus expects Jussieu to publish a lot in botany.
Linnaeus has heard that part of Charles Plumier’s work on the American flora has appeared, and he longs to see it.
Linnaeus asks if Jussieu has heard anything from his younger brother [Joseph de Jussieu], or if he has returned to France. He also asks more generally about news in botany, and implores Jussieu to write to him.
Linnaeus sends his regards to Jussieu’s brother [Antoine de Jussieu] and all his friends in Paris.
If Jussieu has examined Siliqua, also called Ceratonia, Linnaeus wants a copy of its character. Are the male flowers of that species distinct from the feminine ones?