| 1. | With"before and after" experiments the effect of treatment cannot be separatedfrom the effect of change in rainfall |
| 2. | Ccalibration of paired plots before treatment |
| 3. | An unexplained anomaly in the relationships between splash and cover |
| 4. | Mass ratio calibration of Laws and Parsons |
| 5. | Laws and Parsons data on drop size and intensity |
| 6. | Later studies of drop diameter at high intensities |
| 7. | Erosion pins to measure change in surface level |
| 8. | A simple profile meter for measuring changes in surface level |
| 9. | Profile meter with a photographic record |
| 10. | Setting out a network of erosion pins to measure gully erosion |
| 11. | Calculation of cross-sections in a gully |
| 12. | Schematic diagram of simple methodology to determine the effect of certain treatments on soil erosion |
| 13. | An unsuccessful attempt to measure runoff from terraced land using a small plot |
| 14. | Layout of experimental plots to avoid bias caused by soil variation |
| 15. | A simple version of the Gerlach trough |
| 16. | Hydrographs from three watersheds in Sri Lanka |
| 17. | Layout of experimental plots in Zimbabwe |
| 18. | Use of screens to trap floating debris |
| 19. | Calculating the flow in pipes from the height of a vertical jet |
| 20. | Variation of velocity in a stream |
| 21. | Two types of current meter |
| 22. | Estimating the flow in a stream from measurement with a current meter |
| 23. | An example of the rating curve for a stream or river |
| 24. | Channels with the same cross-sectional area have a different hydraulic radius |
| 25. | Nomograph for solving Manning's formula |
| 26. | Freeflow and submerged flow over a sharp-crested weir |
| 27. | Unsuppressed flow with end contractions and suppressed flow with the weir in a channel |
| 28. | Measuring streamflow with sharp-crested weirs |
| 29. | Sharp-crested weirs must have a sharp upstream edge |
| 30. | A Cipolletti weir |
| 31. | A compound weir |
| 32. | A Parshall flume |
| 33. | Dimensions of a Parshall flume |
| 34. | Proportions of the H flume |
| 35. | Effect of submergence on the calibration of an H flume |
| 36. | The Washington State College flume |
| 37. | Velocity, sediment concentration and sediment discharge in streams |
| 38. | A suggested pattern for sediment sampling with sampling points at half the depth of flow |
| 39. | A depth-integrating sampler |
| 40. | A point-integrated sampler |
| 41. | Device for simultaneous sampling at the stream surface and at depth |
| 42. | An array of samplers for progressive sampling during a rising stage |
| 43. | Sediment sampling mast |
| 44. | Cableway manual pump sampling |
| 45. | Bedload trap |
| 46. | Bedload sampler |
| 47. | Bedload sampler with pressure differential at entry |
| 48. | Total load slot sampler |
| 49. | Trap efficiency of reservoirs |
| 50. | Relationship between median volume drop diameter and intensity |
| 51. | Terminal velocity of raindrops |
| 52. | Relationship between kinetic energy and intensity |
| 53. | A simple garden spray simulator |
| 54. | A reciprocating garden sprayer |
| 55. | The working principle of some rainfall simulators |
| 56. | A manually-operated simulator from Kenya |
| 57. | Relationship between intensity of rainfall and duration |
| 58. | Average runoff in arid or semi-arid climates can be found by plotting cumulative totals of measured rainfall against measured runoff |
| 59. | Relationship between runoff and rainfall for various values of S |
| 60. | Relationship between rainfall and runoff using runoff curves |
| 61. | Alternative estimates of soil erosion in Africa |
| 62. | Combined slope/length factor in the USLE |
| 63. | Structure of SLEMSA |
| 64. | Relationship between cover and soil loss |
