An observational program is described which has been used to obtain an accurate determination of vertical profiles of wind speed, temperature, and vapor pressure over a salt water inlet with an over-water air fetch of about five miles. The wind profiles show systematic anomalies of 1 or 2 %, which are not explainable as instrumental or observational error. The curvature of wind profiles over water shows the same dependence on Richardson number as that found by others over land. Temperature profiles are similar in this respect, but curvature of the vapor pressure profiles shows little dependence on stability. Values of the resistance coefficient computed from wind profiles are at the lower limit of those reported by most other investigators....