Letter, with envelope, to Sir Charles Lyell from Rene-Edouard Claparede sending information on the nature of the research of Johan Japetus Steenstrup and Johan Georg Forchhammer relating to the former peoples of Denmark. He states that although they are interesting from an archaeolological point of view, they do not have the importance that Lyell attaches to them. The findings do not have the same import as the axes discovered in France or Devon. He then gives a precis of the research, 6 October 1859.