. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. 114 BULLETIN OF THE BUREAU OF FISHERIES The above observations show the necessity, when using an electric screen for protecting an opening, of having the equipotential surfaces parallel with the plane of the opening and the lines of electric-current flow perpendicular to this plane. LINES OF CURRENT FLOW AND EQUIPOTCNTIAL SURFACES FOK TWO par;» gr/^tinss of parallel CYUNCRICALELECTRCDES IMMERSED IN WATER OF ANY UMIFORM RESISTIVITY. Fig. 10 When in swift water fish hold their bodies
. Bulletin of the United States Fish Commission. Fisheries -- United States; Fish-culture -- United States. 114 BULLETIN OF THE BUREAU OF FISHERIES The above observations show the necessity, when using an electric screen for protecting an opening, of having the equipotential surfaces parallel with the plane of the opening and the lines of electric-current flow perpendicular to this plane. LINES OF CURRENT FLOW AND EQUIPOTCNTIAL SURFACES FOK TWO par;» gr/^tinss of parallel CYUNCRICALELECTRCDES IMMERSED IN WATER OF ANY UMIFORM RESISTIVITY. Fig. 10 When in swift water fish hold their bodies parallel with the direction of stream flow for ease in swimming. This fact must also be taken account of when installing an electric screen. The lines of electric-current flow must be parallel with the direc- tion of water flow and the equipotential surfaces at right angles to the direction of water Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States Fish Commission. Washington, The Commission, Govt. Print. Off
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