AT the meeting of the French Geographical Society on November 19, M. Henri Duveyrier read an important memorandum which he had drawn up on the subject of the sources of the Niger. After going carefully into the question of Major Laing's prior discovery and various matters relating to the hydrographic system of the Niger basin, he thinks it very doubtful if any other stream will ever be discovered having a right to be deemed the chief source of the river, than the Tembi-Kundu visited by MM. Zweifel and Moustier. M. Duveyrier's remarks will no doubt be published in an early number of the French Geographical Society's Bulletin, and it may be hoped that it will be illustrated by a large scale map. At the annual meeting of the Society last Friday, M. Maunoir read his usual report on the work of the Society and the progress of geographical knowledge. It was announced that the Society had now about 2100 members, being an increase of about 100 in the year.