著名农史学家游修龄教授与我校古农学研究室几代学人间有着密切的学术交往，建立了深厚的情谊。喜逢先生八十华诞，回忆一二事，以为庆贺。辛树帜先生晚年亲辑《故人手泽》，裒集至交信函，其中珍藏游先生手书五帜。1962年，辛老寄赠《我国果树历史的研究》一书，时坊间未见，? Professor You Youling, a famous agricultural historian, has close academic exchanges with generations of scholars and scholars of our school and has established a profound friendship. Mr. Xifeng 80th birthday, memories of one or two things, that celebration. Mr. Xin Shuzhi his later years, pro-family, “the hand-Chak”, 裒 set to pay the letter, including travel Mr. handwritten five flags. In 1962, Xinlao sent a book entitled “Research on the History of Chinese Fruit Trees,” a book that was not available at any time.