Keywords: Philosophical transactions of the Royal Society of London BHL48364689.jpg Philosophical transactions of the Royal Society of London 48364689 188338 102951 Table of Contents v 115 1825 http //www biodiversitylibrary org/page/48364689 1825 Royal Society Great Britain Public domain The BHL considers that this work is no longer under copyright protection<br> Biodiversity Heritage Library PD-old-70-1923 Philosophical transactions of the Royal Society of London Images uploaded by Fæ Files from the Biodiversity Heritage Library |