Date. Distance from base. Wind in direction of river. Depth of river. Mean time, run in minutes. TABLE B.-Sub-surface velocities in nearly the same depth of water, St. Lawrence River, 1868. |
Date. Distance from base. Wind in direction of river. Depth of river. Mean time, run in minutes. TABLE B.-Sub-surface velocities in nearly the same depth of water, St. Lawrence River, 1868. |