The first world war was not a happy time for Harrison, with his pacifist leanings and his German wife and studies, but he persevered with embryology, working upon the symmetries of development. Although a keen morphogeneticist and an admirer of Goethe, Harrison himself did not philosophise much in his papers and, being somewhat reserved and diffident in his social dealings despite his warm feelings for his students' attainment, did not enjoy lecturing but chiefly confined himself to organisation, publication (his textbook illustrations have been highly praised) and patient experiment. He remained a keen walker all his life and is presumed to have died in New Haven. See also Alexander Gurwitsch Hans Spemann Paul Alfred Weiss References External links Ross Granville Harrison papers (MS 263). Manuscripts and Archives, Yale University Library. 1870 births 1959 deaths American anatomists Foreign Members of the Royal Society United States Fish Commission personnel Members of the United States National Academy of Sciences Yale School of Medicine faculty Yale Sterling Professors Members of the Royal Society of Sciences in Uppsala