Foreword plants in cultivation in this country. Over 160,000 such entries were recorded and may be found in "Plant Inventories of the Section of Seed and Plant Introduction of the Department of Agriculture," which my colleagues and I-especially the late O. F. Cook and P. H. Dorsett and Walter T. Swingle, who is still living-took great pains to record. I am still so in the habit of writing out and exploring for new plants that life holds the freshness which comes to those who play with living rather than inanimate objects and to whom the future events have greater attractions than have the events of the past. I hope this book will touch the lives of many thousands of men and women who were still unborn in 1898, but who are wondering what kind of cultures the humans inhabiting the globe will build during their lifetimes. They cannot build without plants the beautiful world of our dreams. DAVID G. FAIRCHILD The Kampong September, 1949