This special edition of 'Yam Culture in Puerto Rico' was written by the U.S. Department of Agriculture, and first published in 1921. It was produced by the Porto Rico Agricultural Experiment Station, and is also known as 'Bulletin 27.' The book covers topics like The Yam as a Food Crop in Porto Rico, General Practices in Yam Growing, Tests in Vine Pruning, Varieties and Cultural Treatments Recommended, and more. A super-short, fast read, but a great resource for all interested in the Yam as a crop, or in horticultural history topics in general. 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.