The next International Congress is to be held at Bologna in September of next year. For the first time since the Cambridge Congress of 1912, all differences of nationality are to be disregarded, and mathematicians who believe that in spite of all that has happened since 1912 international cooperation is possible, or even that because of all that has happened international cooperation is imperative, will be glad to have ample warning in order not to make plans that might inadvertently interfere with their attendance.