A contract was entered into with the Russian Government, providing for the extension of the latter's line through Siberia to the mouth of the Amur River, and granting to the Company certain extraordinary privileges in Russian territory. Similar concessions were obtained in 1864 from the British Government; assistance was promised by the United States Congress; and the Western Union Extension Company was immediately organised, with a nominal capital of $10,000,000. The stock was rapidly taken, principally by the stockholders of the original Western Union Company, and an assessment of five per cent. was immediately made to provide funds for the prosecution of the work. Such was the faith at this time in the ultimate success of the enterprise that in less than two months its stock sold for seventy-five dollars per share, with only one assessment of five dollars paid in. In August, 1864, Colonel Charles S. Bulkley, formerly Superintendent of Military Telegraphs in the Department of the Gulf, was appointed engineer-in-chief of the proposed line, and in December he sailed from New York for San Francisco, to organise and fit out exploring parties, and to begin active operations. Led by a desire of identifying myself with so novel and important an enterprise, as well as by a natural love of travel and adventure which I had never before been able to gratify, I offered my services as an explorer soon after the projection of the line. My application was favourably considered, and on the 13th of December I sailed from New York with the engineer-in-chief, for the proposed headquarters of the Company at San Francisco. Colonel Bulkley, immediately after his arrival, opened an office in Montgomery Street, and began organising exploring parties to make a preliminary survey of the route of the line. No sooner did it become noised about the city that men were wanted to explore the unknown regions of British Columbia, Russian America, and Siberia, than the Company's office was thronged with eager applicants for positions, in any and every capacity. Adventurous Micawbers, who had long been waiting for something of this kind to turn up; broken-down miners, who hoped to retrieve their fortunes in new gold-fields yet to be discovered in the north; and returned soldiers thirsting for fresh excitement,--all hastened to offer their services as pioneers in the great work. Trained and skilled engineers were in active demand; but the supply of only ordinary men, who made up in enthusiasm what they lacked in experience, was unlimited. Month after month passed slowly away in the selection, organisation, and equipment of parties, until at last, in June, 1865, the Company's vessels were reported ready for sea.