In the decade between the beginning of the world depression and the Japanese occupation of the islands there appeared a steadily mounting volume of literature on the Netherlands East Indies. This was a reflection of the increasing interest taken by the world, and by the United States in particular, in this large, tropical, insular dependency, but it was also an indication of the rapid social economic and political developments within the dependency. Before 1930 interest in the Netherlands Indies was not great; since 1930 world interest in it increased rapidly and by the end of the decade had become keen. The large corps of well-trained, scientifically minded Dutch officials sent forth a steadily increasing number of excellent studies on various phases of Indies life. Obviously, it is impossible to review the entire field of this literature; only the more significant contributions can be here considered.