Note 12 — LETTER VI.
Reading edition
The general height of the thermometer (Fahrenheit’s) in Lower Egypt during the hot season, at noon, and in the shade, is from 90° to 100°; in Upper Egypt, from 100° to 110°; and in Nubia, from 110° to 120°, and even 130°, though in few years. In the latter country, if placed in the sand and exposed to the sun, the thermometer often rises to 150° or more. The temperature of Lower Egypt in the depth of winter is from 50° to 60°.