354: COSMOS. 



were exhibited to the Asiatic Society of Calcutta. According 

 to very accurate investigations by Daussy, singular shocks 

 and agitation of the sea, ascribed to the commotion of the 

 sea-bottoin by earthquakes, have been observed in this vol- 

 canic region, as it is called in the new and beautiful American 

 chart of Lieutenant Samuel Lee (Track of the Surveying Brig 

 Dolphin, 1854), five times between 1747 and Krusenstern's 

 circumnavigation of the globe and seven times from 1806 to 

 1836. But during the recent expedition of the brig Dol- 

 phin (January 1852), as previously (1838), during Wilkes's 

 exploring expedition, nothing remarkable was observed, 

 although the brig was ordered " on account of Krusenstern's 

 volcano " to make investigations with the lead between the 

 equator and 7 S. latitude, and about 18 to 27 longitude. 



III. AFRICA. 



It is stated by Captain Allan that the volcano Mongo-ma 

 Leba in the Cameroon Mountains (4 12' N. lat.), westward 

 of the mouth of the river of the same name in the Bight of 

 Biafra, and eastward of the Delta of the Kowara, or Niger, 

 emitted an eruption of lava in the year 1838. The four 

 high volcanic islands of Annabon, St. Thomas, Isla do 

 Principe, and San Fernando Po, which run on a fissure 

 in a direct linear series from SS.W. to NN.E., point to the 

 Cameroons, which, according to the measurements of Captain 

 Owen and Lieutenant Boteler, rises to the great altitude of 

 nearly 13,000 feet. 64 



A volcano (?) a little to the west of the Snowy Mountain 

 Kignea in Eastern Africa, about 120' S. lat. was discovered 

 by the missionary Krapf in 1849, near the source of the 

 River Dana, about 320 geographical miles north-west of the 

 coast of Mombas. In a parallel nearly two degrees more 

 southerly than the Kignea is situated another snowy moun- 

 tain, the Kilimandjaro, which was discovered by the mis- 

 sionary Rebmann in 1847, perhaps scarcely 200 geographical 

 miles from the same coast. A little to the westward lies a 

 third snowy mountain, the Doengo Engai, seen by Captain 



54 Gumprecht, Die vulkanische ThatigTceit auf dem Festlande von 

 Afrtfca, in Arabien und auf den Insdn des rothen Meeres, 1849, s. 18. 



