8o2 The American Naturalist. [September, 
From Alogador our traveler, with a party of men, returned to 
Saffi, and thence crossed the country to .Morocco. The first part of 
the journey was over the raised sea-bed of Abda, the second over a 
higher step of the plateau called Bled Hammel, or the Red Country. 
The district of Rahanma, farther on, is composed of serrated ranges of 
denuded hills running parallel to the Atlas. The city of Morocco is 
in a great plain— the dried-up bed of an ancient lake. The first 
excursion was to the picturesque town of Demnat, situated in a 
most charming vallev. A coutinuous boss or d\ke of basalt marks for 
many miles the merging of the mountains from the plains. From 
Uemnat excursions were made to the wonderfiil natural bridge- 
aqueduct of Iminifiri, and to Tasimset, south-west of Demnat. The 
great arch at Iminifiri is not only used as a bridge, but a stream which 
forms a cascade on one side of the gorge passes over it from its source 
on the other. From an elevation of 6000 feet near Tasim.set it was 
evident that Cretaceous rocks not only formed the lower ranges, but 
the central mass of the Atlas. From Sidi Rehal, between Demnat and 
Morocco, a start was made for the higher peaks. After passing throuj^h 
glens with cliffs of red clays, red sandstone was reached. The pass of 
Tizi-n-leluet was crossed at a height of 8381 feet. Compelled to 
turn back by the Kaid of Glauwa, the party followed the foot of the 
range south-we.lward. and the ascent of the Tizi Nemiri (9962 feet) 
Mr. Thomson had orders both from the Sultan and from the local 
of intruders. Mr. I'l-jomson was stoned, and had several narrow 
escapes from being shot. After a failure to ascend the gorge of the 
Urika, the Reraya glen was climbed, and the summit of Tizi Likunipt 
(13,151 ft.) was reached. Still later the end of the Atlas range was 
turned by the valley of a tributary of the Sus, the mountains of 
metamorphic rock rising to 6000 feet on one side, while on the other 
the Mtuga and Haha .plateau of red sandstone rose only to some 
Mr. W. B. Harris' Travels in Morocco—Mr. W. B. Harris 
disguise to Sheshuan, a town some 60 miles south of Tetuan. The 
inhabitants are nearly all '-Shorfa" or descendants of the Prophet, 
Sheshuan is a walled town with seven mosques and five gates, its 
