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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1897 Excerpt:... "Crest of the Libyan Hills" from January 1 to 8, and the "Valley of the Tombs of the Kings" from January 8 to March 26). The relative humidity by night of the desert station was not much greater than that by day; it was, however, at its maximum at 8 a.m. instead of 6 a.m., as at Luxor, owing to its position in a valley with high hills to the east obstructing the sun's rays. The diminution to 10 a.m. was slight only, and the mean minimum was not reached till 4 p.m.; 6 p.m. only added 4 per cent as compared with 8"8 per cent at Luxor, and very little was added by midnight to reach only 39 per cent; after midnight more was added than before, whilst at Luxor the reverse was the case. Table (P) compares again Luxor Desert West the stations being those described as (7-a) in the Nile valley, but removed from the cultivated land by 300 yards from January 1 to 12, by 2 miles from January 12 to February 11. After February 11 in the Valley of the Tombs of the Kings at the station already described as (7-/8) with Helouan, Luxor, and Assouan. TABLE (P).-helouan, Luxor Roof, Luxor Desert West, And Assouan, January And February 1895. Again we find the desert has not reached its maximum till 8 a.m., but this was not the case during the time that the instruments were exposed in the Nile valley, receiving the sun's rays at sunrise, and it is therefore only a local effect in the Valley of the Tombs of the Kings. The dryness of the day is found to persist, as in the valley, to 4 p.m., and, as at that station, the increase of relative humidity is very slight up to midnight, but after midnight is more marked. Table (Q) is only for 7 days (Jan. 1 to 7, 1894), and is comparative of the relative humidity at the desert station (7,-y) on the "Crest of t...