Clas Bjerkander’s Contributions to plants and ice crystals symmetry

This paper represents a short survey on symmetry works of an 18th century Swedish natural scientist and priest, Clas Bjerkander. This is also a historical tribute to Bjerkander who was a student of Carl Linnaeus (Carl von Linné), and later, became an elected member of the Royal Swedish Academy of Sciences, from 1778. For the convenience of reading, in the present paper the original Bjerkander’s publication in the Proceedings of Academy 1775 is given in the translation from Old Swedish to English, for the first time.