A VERY successful Congress to discuss population problems was held in Paris on July 29–August 1 last, under the presidency of M. Adolphe Landry. The Congress was honoured by the patronage of M. Albert Lebrun, President of the Republic, who attended the opening session. Before this, on July 28, a meeting of the General Assembly of the International Population Union took place ; and it may be noted that the Congress was held under the auspices of the Union, which took a definite part in the arrangements for the Congress. At the General Assembly, M. Adolphe Landry was elected president of the Union in succession to Sir Charles Close. M. Landry is a former Minister of State, whose interest in demographic matters is well known. He has written several works on the subject, particularly "La Révolution Démographique"(1934). His management of the Congress was most happy.