Linné on line 
Mathematics in Linnaeus’ time "our honest Klingenstierna" Death and grieving An attempt at an Opera Omnia
An attempt at an Opera Omnia
In the manuscripts Klingenstierna left behind, only mathematical problems are treated, some with applications in physics. They comprise several thousand pages, the overwhelming majority of them written in Latin. These were cataloged by his student Fredric Mallet, who planned to publish them in an Opera Omnia, that is, as Klingenstierna's collected works. As a result of war with Russia, however, there was no money for the printing. In Mallet's catalog, according to a plan from 1788, they are divided into ten main groups, including geometry, algebra, integral computation, differential equations, statistics, mechanics, and optics. These, in turn, are divided into subgroups (a total of 292), each of which contains one or sometimes several propositions in mathematics or physics. The great majority of Klingenstierna's remaining manuscripts are preserved today in the manuscript collection at Uppsala University Library.