Nilometer

This is the isle of Rodda, on the bank of which Moses was found, and where you may see the Nilometer.

The moon-god Khons bears in his hands either a palm-branch or "the Nilometer."

A few days later an anxious crowd gathered to see the water mark on the Nilometer begin to come up.

Nilometer, nī-lom′e-tėr, n. a gauge for measuring the height of water in the river Nile: any river-gauge—also Nī′loscope.