...on his two great works on the living and the dead world of fishes may be inferred from the following account of his medical theses. It was written after his death, to his son Alexander Agassiz, by Professor von Siebold , now Director of the Museum in the University of Munich. How earnestly Agassiz devoted himself to the study of medicine is shown by the theses (seventy-four in number), a list of which was printed, a...