Sweden

A member of the minor Swedish nobility, Clerck was a friend and correspondent of Linnaeus. He studied spiders, publishing his identifications and analyses in the present work along with observations on their behavior. In Swedish and Latin, it describes and illustrates 70 species and is a classic of arachnology; indeed, it is the founding text on spider nomenclature.

Graduate dissertation defended by A. A. Roman at the University of Uppsala discussing the effects of gravity upon terrestrial bodies. together with:

Dissertatio gradualis de gravitate lunae . . . Samuel Klingenstierna, praeses. Gabriel Kolmodin, respondent. Holmiae: Literis Wernerianis, 1734.

Dissertatio gradualis de gravitate aeris. . . Samuel Klingenstierna, praeses. Johann Kristiern Duraeus, respondent. Upsaliae, Literis Wernerianis, 1732.