Fig. | 1. Shallow barnyard well | 6 | 2. Portable earth closet | 8 | 3. Old form of earth closet | 9 | 4. Earth closet and dry catch | 10 | 5. Self-acting peat dust closet | 11 | 6. Settling chamber and flush tank for irrigation | 12 | 7. Subsurface irrigation of sewage | 13 | 8. Garbage cremator | 16 |
SEWAGE DISPOSAL ON THE FARM AND THE PROTECTION OF DRINKING WATER.
|
|