Productive Agriculture Author:John. H Gehrs Publisher: The Macmillan Company Publication date: 1917 Subjects: TECHNOLOGY Agriculture and related sciences and techniques. Forestry. Farming. Wildlife exploitation Agriculture in general Notes: This is an OCR reprint. There may be numerous typos or missing text. There are no illustrations or indexes. When you buy the General Books e... more »dition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. You can also preview the book there.« less