each synthesizing scholarship in the field for students and the general public

each synthesizing scholarship in the field for students and the general public
=
each edition containing scholarship in the field for students and for the general public?

What puzzles me is that is there a scholarship for the general public?

Context:

When he returned to Harvard after the war, Fairbank inaugurated a Master's Degree program in Area Studies. Harvard at that time was one of several major universities in the United States with Asian study programs. The Area Studies approach at Harvard was multi-disciplinary and aimed to train journalists, government officials, and others who did not want careers in academia. This broad approach, combined with Fairbank's experience in China during the war, shaped his United States and China (Cambridge, MA: Harvard University Press, Foreign Policy Library, 1948). This survey went through new editions in 1958 and 1970, each synthesizing scholarship in the field for students and the general public. In the 1960s, he studied Chinese at the Taipei Language Institute.[3] In 1972, in preparation for Nixon's visit, the book was read by leaders on both sides.[4]

Fairbank was among the so-called China Hands who predicted the victory of Mao Zedong and the Chinese Communist Party and advocated establishing relations with the new government. Although Fairbank argued that this would be in the American national interest, many Americans accused the China Hands of selling out an ally and promoting the spread of Communism and Soviet influence. In 1949, Fairbank was targeted for criticism of being "soft" on Communism, and was denied a visa to visit Japan. In 1952, he testified before the McCarran Committee, but his secure position at Harvard protected him. Ironically, many of Fairbank's Chinese friends and colleagues who returned to China after 1949, such as Fei Xiaotong and Chen Han-seng, would later be attacked for being "pro-American" as the Chinese Communist party became more rigidly communist.[5]