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PREFACE TO T1IF CHRONOLOGICAL LIST OF THE DISSERTA¬ 
TIONS OF CHARLES LINNAEl S. 
The dissertations of Linnaeus are of the utmost 
imporlance in determining the correct names to be applied 
to many of the commonest plants and animals* Almost all, 
if not all, of these dissertations were written by 
Linnaeus himself* On this point, B* Daydon JacLson the 
custodian of the splendid Linnean collection of tiie 
Linnean Society of London, savsjl 
"That Linnaeus regarded most of these exercises as 
his own may be learned from such instances as where lie 
cited plants from Centnria l(-2) Plantaruit in the second 
edition of his Species Plantarum, as first described in 
those parts, but without naming’"any author whatever. He 
plainly looked upon those productions as entirely his own. 
JacLson also says: 
"To determine how many of these one hundred and 
eighty-six dissertations entirely proceeded from Limit's 
pen is impossible. That such was the case with certain 
essays, we have his own word, and their contents also 
show that; others, such as LBfling’s Dc gemmis arbornm . 
SSderberg’s Pandora ct Flora Ryb ensis * Tillaeus’s De 
varia f ebriuni intermittent ium cu rat lone , are, on tTi"e 
contrary, exclusively the results of the respondent’s 
own study and observation. But even these have certainly 
to some extent received the stamp and imprimatur of 
Linn6, who completed and corrected them throughout before 
they were printed." 
J. G. Acrel, a pupil of Linnaeus, tells how the 
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dissertations were written, as follows:^ 
1 
Jackson, 3. Daydon, Authorship in the Amoenitates Academicae, Jin 
Journal of Botany, 51:101-103 (no. f>03, March, 1^13)* 
2 
Jackson, 3. Daydon l.c. p. 102 
