Measuring water in pipes with current meter. Shooting velocity in 12 in. dia. Pipe 6' long. Bellvue, 1941-08 -- Measuring water in pipe (12 in.) with current meter. Normal velocity, 1941-08 -- Measuring water in pipe (12 in.) not quite full. Bellvue, 1941-08 -- Measuring water in pipe (12 in. submerged) with Hoff current meter. Rohwer measuring, 1941-08 -- Measuring water in pipe (12 in. submerged) with Hoff current meter, 1941-08 -- Current meter rating. Hydraulic laboratory. Code on car, 1941-07 -- Calibration of 3-inch Parshall flume Bellvue , 1941-10-07 -- Calibration of 3-inch Parshall flume Bellvue, 1941-10-07 -- Calibration of 3-inch Parshall flume Bellvue, 1941-10-07 -- [Measuring water], undated -- Baca County SE corn Sec 33 T315 R42W. George Murray pump test, 1964-11