Some early nineteenth-century American naturalists condemned their contemporary, Constantine Samuel Rafinesque , as ‘eccentric’, or worse. Both during his life and long after his death, his botanical work in particular was criticised, even ridiculed. However, in recent years, attempts have been made to restore his reputation and the term ‘genius’ has even been used to describe him. This paper examines this continuing fascination with this strange, disturbing figure and argues that in the competing interpretations of his life and work, Rafinesque (...) has generally been used to typify bad classification; he is perhaps better understood in a broader, literary context as embodying a particular kind of American national identity. (shrink)

This study presents the first translation from Latin to English of the Linnaean dissertationMundus invisibilisorThe Invisible World, submitted by Johannes Roos in 1769. The dissertation highlights Linnaeus's conviction that infectious diseases could be transmitted by living organisms, too small to be seen. Biographies of Linnaeus often fail to mention that Linnaeus was correct in ascribing the cause of diseases such as measles, smallpox and syphilis to living organisms. The dissertation itself reviews the work of many microscopists, especially on zoophytes and (...) insects, marvelling at the many unexpected discoveries. It then discusses and quotes at length the observations of Münchhausen suggesting that spores from fungi causing plant diseases germinate to produce animalcules, an observation that Linnaeus claimed to have confirmed. The dissertation then draws parallels between these findings and the contagiousness of many human diseases, and urges further studies of this ‘invisible world’ since, as Roos avers, microscopic organisms may cause more destruction than occurs in all wars. (shrink)