This subseries consists administrative correspondence of the Centre. Within each year correspondence is arranged in rough alphabetical order; within some years there are several alphabetical sequences.
These files represent the general correspondence of the Centre. The correspondence is arranged in alphabetical order within each year. There are several alphabetical sequences for some years. There are separate folders for each person or organization with which there was correspondence in 1938. These names are listed below. It can be assumed that there is correspondence for many of these individuals in the files for earlier years. The correspondence folders for 1937 are followed by "documents", which consist of brochures, books, pamphlets, and other printed matter enclosed with correspondence received by the Centre.
