This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Cambridge and Dublin Mathematical Journal . en Author Duncan Farquharson Gregory Robert Leslie Ellis William Thomson Kelvin Norman Macleod Ferrers Publisher Johnson etc Year Possible copyright status NOTINCOPYRIGHT Language English Digitizing sponsor Google Book from the collections of unknown library Collection americana archive