This special edition of 'Diseases of Sweet Potatoes' was written by the U.S. Department of Agriculture, and first published in 1921, making it over a century old. It is also known as "Circular 123." This old USDA publication is super-short and to-the-point, and covers subjects including Yellow Stem, Stem Wilt, or Stem Rot, Black Rot, Soil Rot, "Pit" or "Pox," Slime Mold, Preparation of Soil Beds, Seed Selection, and more. A great little book and a super-fast read for anybody interested in Sweet Potatoes, and all those considering growing them. IMPORTANT NOTE - Please read BEFORE buying! THIS BOOK IS A REPRINT. IT IS NOT AN ORIGINAL COPY. This book is a reprint edition and is a perfect facsimile of the original book. It is not set in a modern typeface and has not been digitally enhanced. As a result, some characters and images might suffer from slight imperfections, blurring, or minor shadows in the page background. This book appears exactly as it did when it was first printed. DISCLAIMER: Due to the age of this book, some methods or practices may have been deemed unsafe or unacceptable in the interim years. In utilizing the information herein, you do so at your own risk. We republish antiquarian books without judgment, solely for their historical and cultural importance, and for educational purposes. If purchasing a book more than 50 years old, especially for a minor, please use due diligence and vet the text before gifting.