1. Tangent screen scotometry in office practice;Duggan;New York State J. Med.,1942
2. An Introduction To Clinical Perimetry;Traquair,1946
3. Ibid., p. 38.
4. Papillitis and papilledema;Chamlin;Am. J. Ophth.,1947
5. Technical methods for the 1/2000 field;Chamlin;Am. J. Ophth.,1947