The End of a much-applauded Speech.-The Presentation of Dr. Samuel Ferguson.-Excelsior.-Full-length Portrait of the Doctor.-A Fatalist convinced.-A Dinner at the Travellers' Club.-Several Toasts for the Occasion. There was a large audience assembled on the 14th of January, 1862, at the session of the Royal Geographical Society, No. 3 Waterloo Place, London. The president, Sir Francis M--, made an important communication to his colleagues, in an address that was frequently interrupted by applause.