 Cope returned to Europe in August 1878 in response to an invitation to join the British Association for the Advancement of Science 's Dublin meeting . He was warmly welcomed in England and France , and met with the distinguished paleontologists and archeologists of the period . Marsh 's attempts to sully Cope 's reputation had made little impact on anyone save paleontologist Thomas Henry Huxley , who according to Osborn , " alone treated [ Cope ] with coolness " . Following the Dublin meeting , Cope spent two days with the French Association for the Advancement of Science . At each gathering , Cope exhibited dinosaur restorations by Philadelphia colleague John A. Ryder and various charts and plates from geological surveys of the 1870s led by Ferdinand Vandeveer Hayden . He returned to London on October 12 , meeting with anatomist Richard Owen , ichthyologist Albert Günther , and paleontologist H. G. Seeley . While in Europe , Cope purchased a great collection of fossils from Argentina . Cope never found time to describe the collection and many of the boxes remained unopened until his death . 
