APPENDIX A. 
83 
main source was tlie great Lake Nyanza^ or farther west^ he was 
quite sure that by the new co-operating expeditions which were 
designed by the Geographical Society, and which he hoped the 
Government would assist, the discovery would greatly redound to 
the honour of the nation, and would greatly advance geographical 
knowledge. 
Colonel Sykes, V.-P.R.G.S., entertained great hopes that 
when Mr. Petherick and Captain Speke renewed their travels, they 
would meet and embrace each other on the Equator.^^ 
Shortly after this meeting, at the suggestion of some of the 
officiating members of the Society, I penned the following letter to 
Sir R. Murchison : 
January, 1860. 
“ Sir, 
“The flattering reception of my paper on the White INile 
by the members of the Royal Geographical Society, and the 
comments thereon by the Chairman, the Earl de Grey, yourself, 
and Colonel Sykes, have induced me to address to you, the Yice- 
President of the Society, a few brief remarks on the existing state 
of trade on the White Nile and the Egyptian dependencies of 
the Soudan in connection with geographical researches. 
“It would be superfluous in me to make any general remarks 
upon the advantages to this great manufacturing country of any 
extension of its trade with Central Africa by increased facilities 
for obtaining additional supplies of cotton, gums, ivory. India- 
rubber, cochineal, oils, and a variety of articles of minor import- 
ance ; but perhaps you are not to the same extent aware of the 
benefits that an additional export trade, that I trust at no distant 
period is likely to present itself to us in the shape of a market 
for cotton manufactured goods in the same regions. 
“ Although the negroes of the White Nile accept at present 
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