Scope and Contents This collection contains Certification of Seed Act No. 221 and Seed Potato Certification Regulations No. 624 and 628 brochures that outline how potatoes are to be certified. Also included are Seed Potato Inspection Service brochures that were put out by the Michigan Potato Producers’ Association and later by the Michigan Crop Improvement Association with inspections handled by Michigan State University (MSU discontinued this practice in 1968). Also included is a brief "History of...