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Link: • Pehr af Bjerkén to Carl Linnaeus, 29 June 1768 n.s.
Dated 29 Junii 1768. Sent from Stockholm (Sweden) to (). Written in Swedish.


Pehr af BjerkénBjerkén, Pehr af
(1731-1774). Swedish. Pupil of
Linnaeus. City medical officer,
Stockholm. Correspondent of Linnaeus.
writes that the Queen [Lovisa UlrikaLovisa Ulrika, (1720-1782).
Swedish. Queen of Sweden 1751-1771.
Married to Adolf Fredrik. Mother of
Gustav III. Sister of Fredric II of
Prussia. Correspondent of Linnaeus.
] has sent him a newspaper from Hamburg of June 18th No. 98 with an article about treatment of cancer by application of frogs on the ulcer. af Bjerkén describes the treatment.

af Bjerkén writes that the Queen, who has sent him the newspaper, has asked him to try this new treatment on some severely ill patients and she has also asked af Bjerkén to inform her about the outcome of the treatment. af Bjerkén writes that he is deeply concerned and suspicious about this article and treatment and asks for Linnaeusí advice. He writes that he has heard Linnaeus say several times that frogs are poisonous. af Bjerkén writes that he has answered the Queen that he cannot start trying this new treatment without consulting Linnaeus.

P. S. af Bjerkén writes that he has five nightingales that sing both when sitting in their cage and when flying about the room. They are also tamer than any other birds and not difficult to keep. af Bjerkén also writes that he got 12 nestlings from a couple of canaries.


a. (LS, II, 21-22). [1] [2] [3]


1. Bref och skrifvelser (1909), vol. I:3, p. 223-224   p.223  p.224.