Lyons, H. G · Cairo: National Prtg. Dept. · leaf 36
ing stonefrom acid fumes. D 50 6 Colour unchanged 1-5 41 Fairly Sodium silicate and Probably no better good. acid. than the cheaper so-dium silicate andcalcium chloride. E 12 6 Slight efflorescence Magnesium fluoride. One of the most noticeable features of the river channel upstream of the dam is a… … The Colonnades from the east. PLATE III.
Aswan High Dam (Egypt) · Temples
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