feet of water per second, but at the height of this flood it carried
about 35,700 cubic feet per second.

The flood period for the entire stream can not be exactly stated, as the
overflow did not occur at the same time in different parts of the basin.
For example, the gage-height records at Dundee dam show that the flood
began to rise on October 8 at 6.30 a. m., and reached a maximum of 9-1/2
inches over the dam crest at 9 p. m. on October 10. Similarly, on
Beattie's dam at Little Falls the flood began to rise at midnight on
October 7, and reached its maximum at 2 p. m. on October 10, or about
thirty-eight hours after the initial rise, the height of the water being
1.29 inches over the crest of the dam.

The flood rose on the highland tributaries as follows: On Ramapo River
the flood crest passed Hillborn at about 10 a. m. on October 9 and
reached Pompton, at the mouth of the river, shortly after noon of the
same day.

The highest reading recorded on the Geological Survey gage at the feeder
of Morris Canal, in Pompton Plains, was 14.3 feet, at about 6 o'clock on
the morning of October 10. As this gage is read only once daily it is
probable that this reading does not represent the height of the flood
crest. Evidence shows that it passed this point on the previous day.
Records of the Newark water department show that the flood on Pequanac
River began to rise at Macopin dam on October 8 at noon, and rose
rapidly to the maximum of 6,000 cubic feet per second at 4 p. m. on
October 10.

No records are available with reference to the rise of flood on Wanaque
River.

Observations made on Pompton Plains on the morning of the 11th show that
Pompton River was well within its banks at that time; therefore the
Ramapo, Wanaque, and Pequanac must have discharged their flood waters
some time previous to this hour. The fact is important when considered
in connection with the height of water in the main stream at that
period. This observation was made only eighteen hours after the maximum
height over Beattie's dam at Little Falls, and twelve hours after the
flood crest passed Dundee dam. The conditions here outlined illustrate
the rapidity with which flood waters are discharged from the Pompton
drainage area, and the deterring effect of Great Piece Meadows upon the
flood.

The rise of the flood on Rockaway River at Old Boonton was almost
coincident with that on Pequanac River at Macopin dam. The maximum flow
occurred fourteen ho