Explorations in Persia and Afghanistan. 233 
Towards the middle of May, the expedition left Astrabad, 
and, having passed Albourz, stopped at Schakhroud. Mr. Lentz 
observed here, as everywhere in his travels, the movement of the 
chronometers, and determined again the three magnetic elements 
pn the latitude of a great number of peaks in the Albourz — 
in, 
On the first of June, when Mr. Khanikoff had returned, the 
expedition directed its course towards Meschel, the actual capital 
of Khorassan. During the whole route Mr. Lentz took great 
pains to determine the greatest possible number of geographical 
points and ascertain the elements of terrestrial magnetism. The 
live weeks of his sojourn at Mesched were spent in works of this 
ind, and he also made an excursion in the neighborhood in or- 
t to efiect astronomical and barometrical observations. 
The expedition left Mesched in the first part of August and 
reached Herat during the first days of September; having already 
determined a considerable number of geographical points, the 
_ Position of which had been previously unknown. a 
tn Khorassan, Mr. Lentz was chiefly occupied in determining 
With the greatest possible accuracy the absolute longitude of the 
70st eastern point touched by the expedition. From Herat Mr. 
Lentz advanced to Tebbes, which is situated at the eastern limit 
of the salt desert of Khorassan, and then to Birdia-Sand, and 
“ueceeded in collecting many valuable additions to science. 
In the midst of February 1859, the expedition left Khorassan 
sid took its course towards Lasch, a fortified city and the capi- 
lil of a little state of the same name. The observations made 
‘his country are particularly interesting. ‘They show that the 
i retrial surface rises gradually from Herat to the passage Sen- 
ighé-Sia, near the city of Sabzor (Kingdom Hérat), where this 
The ve still an elevation of 1200 feet. 
like 7,..Pedition stopped, in its course, on the eastern shores of 
Watey mes the reverse takes place, according to the quantity of 
it vis furnished by the three principal rivers, which empty into 
ie: the Kharoud and the Ferraroud in the north, and the 
it happens, th waters of the lake divide into two 
; a one brands the nore al the other towards the south, 
Peal Kept separated by a band of completely dry land as was 
aco, At the time of the expedition. This at least is the ac- 
> SERIEs, Yow, XXIK, No. 86.—MARCH, 1860. 
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