Discussion of “The displacement of calibration curves for electrical soil‐moisture units”

This paper seems to leave unanswered a number of questions pertaining to calibration of soil‐moisture units. In Remson and Fox's discussion of results they list five facts that are shown by the calibration.

The first three deal with the second drying curve being different than the first, and subsequent dryings being similar to the second one. Similar findings were brought out before by Bouyoucos [1949], and later substantiated by Colman [1949] and by others including the work at the Coshocton Station. The writer's discussion, however, is confined to the discrepancy of field calibration with laboratory calibrations which comprise the fourth and fifth facts discussed by Remson and Fox.