2 
"All disputations he /Linnaeus/ wrote by dictating 
partly in Swedish, partly in Latin, which it was the task 
of the respondends to reduce to meihod and order; and 
although he did not trouble himself about the Latinity in 
them, he took care to intimate his opinion as to whether 
they were well written or the contrary. To write an 
essay thus needed scarcely three hours, for it was for 
him nothing but a lecture'on the subject, which the 
respondent took down." 
They were reprinted several times in the different 
editions of the Amoenitates academicae, but unfortunately 
many changes of names were made in these reprints. The 
Linnean Society in London has the original dissertations 
as changed and corrected by Linnaeus for reprinting. 
In view of the changes made in the reprints, it 
becomes of great importance from historical and nomen- 
clatorial standpoints to consult the original disserta¬ 
tions themselves. The aim of the present list is to 
locate all original editions of Linnean dissertations to 
be found in the libraries of the United States. 
At first it was thought sufficient to list the 
botanical and zoological dissertations, but it has been 
found difficult to decide which dissertations to include 
and which to exclude from such a list. Accordingly the 
list has been prepared to cover all dissertations of 
Linnaeus. 
The dissertations are listed in strict chronological 
order and are classified according to the list given in 
the catalogue of the Linnean Society of London, as 
