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Geographical Notices. 259 
Arr. XX VII.— Geographical Notices. No. XVI. 
THE notices of the progress of Physical Geography which 
Were commenced in this Journal in 1858, having been fur a few 
months interrupted, it appears necessary in resuming them to 
refer briefly to certain expeditions of which our readers through 
other channels may have been already informed, but the effort 
will be made to report the latest information which has reached 
Us from trustworthy sources. 
‘hose who are interested in the maintenance of these Notices 
are respectfully requested to communicate to the undersigned or 
to the Editors of this Journal, such information of an original 
and reliable character as may come to their knowledge. Written 
communications and printed documents bearing in any way 
upon the progress of geographical science, (especially such as 
ate not accessible through the ordinary channels of the book 
trade) are especial! y requested. As there is an evident propriety 
im making an American Journal the repository of everything 
which pertains to the exploration of this continent, all such in- 
formation whether published by congressional or legislative 
les, by societies or by private enterprise will be particularly 
Welcome, DANIEL C, GILMAN, 
Yale College Library, New Haven, February, 1862. 
AFRICA. 
. SPEKE’s Journey To LAKE NyanzA.—Those who have kept 
informed in respect to the rogress of African discovery will 
Temember that on the celebrated journey (often referred to in 
En, lishman prefixed the name of his sovereign, calling it the 
Victoria ppos 
'9 be the source of the Nile. In regard to it, however, nothing 
definite was known, as the explorer only saw the southern ex- 
Zanzibar, once more, thence to retrace his steps to the Nyanza, 
0 traverse the lake if possible to its northern shores, where of 
“ourse it could be determined whether a great river flowed from 
