242 Geographical Notices. 
plies have been received. These furnish data for the height above tide of 
about thirteen thousand points, of which a large portion has been con- 
tributed by the explurations for routes for the Pacific railroad, and a con- 
siderable number by other surveys of the Government. The material 
received has been mapped by Mr. W. L. Nicholson, who is charged with 
the details of the work, so as to indicate whether the data were likely to 
suffice for the construction of contour lines of the surface of the conti- 
nent, and to show where they would be deficient for that purpose. 
Sources of information have been pointed out, of which we have not yet 
been fully able to avail ourselves, but the work has, in a general way, 
made good progress, and will be earnestly prosecuted.” 
Besides information on these various topics, the report con- 
tains an account of the expedition to Labrador, to observe the 
Solar Eclipse of July 18, Prof. Bache’s Lecture on the Results 
of the Gulf Stream Explorations, a discussion of magnetic de- 
clination or variation, and the usual details respecting the ap 
paratus and personnel of the establishment. 
DESIDERATA IN EAST AFRICAN EXPLORATION. 
The following Note was recently addressed to the Bombay 
Geographical Society, by a Committee of the Royal Geograph: 
ical Society of London, in reply to certain inquiries. 
information for the present rude. wants of African geography, of the 
country between Quiloa and Nyassa; and we have received slight but 
definite knowledge of the same through Réscher’s ill-fated expeditiom 
followed up as it was to some degree by Baron von der Decken. 
Taking yet another step, we arrive at the track of Burton and Speke, 
still proposes to travel. 
“th us there is no urgent call for a new expedition that should leave 
the coast of Africa between the Zambesi and Mombas; but Eastern Africa 
is almost untouched between Mombas and the Red Sea. ‘The field tha 
here awaits new explorations is too vast to be exhausted by any single & 
ified, 
“The first is to ascend the Juba, the Ozi, and other rivers, a8 ae 
