1. Confirmatory test for B. coli in routine water examination;Frost;Amer. Jour. Pub. Health,1906
2. Examination of drinking water on railroad trains;Creel;Hyg., Lab. Bull.,1914
3. The elimination of spurious presumptive tests for B. coli in water by the use of gentian violet;Hall;Jour. Bact.,1918
4. Further studies on gentian violet as a means of eliminating spurious presumptive tests for B. coli in water;Hall;Jour. Amer. Water Works Assoc.,1919
5. Bacteria fermenting lactose and their significance in water analysis;Levine;Iowa State College Eng. Exper. Sta. Bull.