TRANSACTIONS OF THE SECTIONS. 121 
On the Daguerreotype, as applied to the Drawing of Fossils. 
By J. L. B. [ssotson, F.G.S. 
The process proposed by Mr. Ibbotson for this purpose was ex- 
plained, and specimens of its successful results were exhibited. 
On the Geography of New Brunswick. By G. H. 
* FEATHERSTONHAUGH, F.GS. 
The communication related principally to the methods employed in 
a recent survey by the Commissioners, whose report on the boundary 
question has been presented to Parliament. The barometers employed 
in measuring the heights were those made by Bunten (on the siphon 
construction); and towards the end of the operation, others, made by 
Newman, with iron cisterns. E: 
— — 
Dr. Hannah exhibited a section of the bed of the Clyde, made by 
the late Mr. Logan. 
Outline of Three Expeditions which might be undertaken to explore 
portions of the interior of Africa. By Sir J. E. ALEXANDER. 
The first to land at Cape Coast Castle, Gold Coast, proceed thence 
to Comassie, the capital of Ashantee, seventy miles distant, there com- 
municate with Arab traders who come across Africa from the Red Sea, 
and arrange to accompany them eastward. 
The second to land at Zanzibar, and accompany a caravan which 
arrives there annually from central Africa to trade with the warm 
friend of the English, the Imaum of Muscat and Zanzibar. 
And the third to land at Natal, and with horses, to be procured 
there from the English and Dutch settlers, proceed to Delagoa in the 
healthy months, from May to October, and then travelling north-west, 
reach the Cape Colony by Lattakoo. 
Additional Notes on the Wadi el’ Arabah in Syria. By the Rev. Dr. 
E. Rosinson, of New York. 
“ The interest attached to that very remarkable fact in physical 
geography, which has not yet been cleared up, namely, the depres- 
sion of the surface of the Dead Sea, below the level of the Mediterra- 
nean, and the drainage, probably dependent upon this depression, of a 
large tract of country including numerous lateral valleys, extending to 
the southward for upwards of 100 miles through the district termed 
Arabia Petra, from the south point of the Dead Sea nearly to the 
Gulf of Akabah, induces me to offer a few words on the line of sepa- 
