Succincta Succini Prussici Historia et demonstratio The paper is in Latin. A note on the first page states that the paper was read on 31 May 1704, but there is a question mark next to this. The contents page of the volume states that the paper is anonymous, but its title matches a book published in Frankfurt in 1677 by Philipp Jacob Hartmann. The next paper in the volume (MS/366/3/7) is a letter from Hartmann to the Royal Society. The paper relates to 'Prussian amber', in modern terms simply amber. 1704[?]