Note 68 — Chapter III
Reading edition
In this connexion it is interesting to note that as the general level of the country to the south of Gebel Um Heshenib is some 250 metres higher than that to the north of it, the plumb-line will be deflected to the south by local attraction, thus explaining why the observed latitude at that station exceeds by so much the value calculated from the triangulation. Berenice temple, on the other hand, is on a coast-plain remote from mountains, and the observed latitude agrees closely with the calculated one.