Browse Items (2 total) Subject is exactly "Helmholtz, Hermann von,1821-1894.1821-1894." Browse All Browse by Tag Search Items Sort by: Title Creator Date Added Letter to George F. Fitzgerald from R.T. Glazebrook [Letter to George F. Fitzgerald from Reginald Aubrey Fessenden], , 1898 Sort by: Title Creator Date Added Output Formats atom, dcmes-xml, json, omeka-xml, rss2