the identification of certain 
ruined cities mentioned by Ptolemy, and the "Harrahs" or plutonic 
centres scattered over the seaboard and the interior. I venture to solicit 
the attention of experts for my notes on El-Harrah, that great volcanic 
chain whose fair proportions have been so much mutilated by its only 
explorer, the late Dr. Wallin. Beginning with Damascan Trachonitis, 
and situated, in the parallel of north lat. 28 degrees, about sixty direct 
miles east of the Red Sea, it is reported to subtend the whole coast of 
North-Western Arabia, between El-Muwaylah (north lat. 27 degrees 39') 
and El-Yambu' (north lat. 24 degrees 5'). Equally noticeable are the 
items of information concerning the Wady Hamz, the "Land's End" of 
Egypt, and the most important feature of its kind in North-Western 
Arabia. Its name, wrongly given by Wallin, is unknown to the 
Hydrographic Chart, and to the erudite pages of my friend Professor 
Aloys Sprenger, who, however, suspects with me that it may be the 
mouth of the celebrated Wady el-Kura. For further topographical 
details the reader is referred to the "Itineraries" of the Expedition, 
offered to the Royal Geographical Society of London. 
Some of the principal sites were astronomically determined by 
Commanders Ahmed Musallam and Nasir Ahmed, of the Egyptian 
navy. The task of mapping and planning was committed to the two 
young Staff-lieutenants sent for that purpose. They worked well in the 
field; and their sketches were carefully executed whilst under my
superintendence. But it was different when they returned to Cairo. The 
maps sent to the little Exposition at the Hippo-drome (see conclusion) 
were simply a disgrace to the Staff-bureau. My departure from Egypt 
caused delay; and, when the chart reached me, it was far from 
satisfactory: names had been omitted, and without my presence it could 
not have been printed. With the able assistance of Mr. William J. 
Turner, of the Royal Geographical Society, who found the work harder 
than he expected, it has been reduced to tolerable shape. Still, it is 
purely provisional; and, when mining operations shall begin, a far more 
careful survey will be required. 
As regards archaeology, the second Expedition visited, described, and 
surveyed eighteen ruins of cities and towns, some of considerable 
extent, in North Midian, besides seeing or hearing of some twenty large 
Mashghal, apparently the ateliers of vagrant Gypsy-like gangs. This 
total of thirty-eight is not far short of the forty traditional Midianite 
settlements preserved by the mediaeval Arab geographers. Many others 
are reported to exist in the central or inland region; and fifteen were 
added by the South Country, including the classical temple or shrine, 
found upon the bank of the Wady Hamz before mentioned. The most 
interesting sites were recommended to M. Lacaze, whose portfolio was 
soon filled with about two hundred illustrations, in oil and 
water-colours, pencil croquis and "sun-pictures." All, except the six 
coloured illustrations which adorn this volume, have been left in Egypt. 
His Highness resolved to embody the results of our joint labours in a 
large album, illustrated with coloured lithographs, maps, and plans, 
explained by letter-press, and prepared at the Citadel, Cairo. 
The Meteorological Journal was kept by myself, assisted at times by 
Mr. Clarke. Mr. David Duguid, engineer of the Mukhbir, whose gallant 
conduct will be recorded (Chap. VIII.), and Commander Nasir Ahmed, 
of the Sinnar, obliged me by registering simultaneous observations at 
sea-level. The whole was reduced to shape by Mr. W. J. Turner, of the 
Royal Geographical Society. 
My private collection of mineralogical specimens was deposited with 
Professor M. H. N. Story-Maskelyne. The spirit-specimens of zoology
filled three large canisters: and the British Museum also received a hare 
and five birds (Mr. R. B. Sharpe); four bats (Rhinopoma) and a mouse; 
six reptiles, five fishes, thirty-five crustaceans, and about the same 
number of insects; five scorpions, six leeches, sixty molluscs, four 
echinoderms, and three sponges. Dr. A. Gunther (Appendix III.) 
determined and named two new species of reptiles. Mr. Frederick 
Smith (Appendix III.) took charge of the insects. Mr. Edward J. Miers, 
F. L.S., etc., described the small collection of crustaceae (Annals and 
Magazine of Natural History for November, 1878). Finally, Edgar A. 
Smith examined and named the shells collected on the shores of the 
'Akabah Gulf and the north-eastern recess of the Red Sea. 
The main interest of the little hortus siccus was the Alpine Flora, 
gathered at an altitude of five thousand feet above sea-level. The plants 
were offered to Sir Joseph Dalton Hooker, of Kew; and Professor D. 
Oliver, of the Herbarium, has kindly furnished me with a list of the 
names (Appendix IV.). Mr. William Carruthers and his staff also 
examined the spirit-specimens of fleshy plants (Appendix IV.). 
Mr. Reginald Stuart Poole, Keeper of Coins and Medals, and Mr. 
Barclay V. Head were good enough to compare with their    
    
		
	
	
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