1. Marr.Bull. Hist. Med., 1941, ix, 258.
2. Read.Libr. Pract. Med. Vol. 23. Lippincott, Phila., 1861.
3. Hippocrates.New. Syd. Soc., London, 1849, i, 114.
4. Hippocrates. Ibid., 1849, i, 114.
5. Rueff.De conceptu et generatione hominis. Zurich, 1554.