In presenting to our readers a brief notice of the life and work of Professor Seeley, one of the most eminent of Vertebrate Palæontologists, we feel that we are offering but a scant tribute to one who has for more than thirty years occupied a leading position in the world of science. He is not only an accomplished teacher in Geology and the allied sciences in the University of London, but has long been recognized as a distinguished worker in the fields of Zoology and Comparative Anatomy. His investigations into the Fossil Reptilia of the Secondary period, and especially his remarkable researches in the Anomodont Reptilia from the Trias of South Africa, are already classic and-unsurpassed. His purely geological work in the field has also made substantial contributions to our knowledge of the strata in the South of England.