附錄5

1935年5月7日周培源致狄拉克的邀請函原文

（劍橋大學(xué)丘吉爾學(xué)院，丘吉爾檔案館）

Dear Prof.Dirac，

From Dr.S.C.Wang we learn that you are going back to England via Siberia.We sincerely hope that you can spare a couple ofweeks’time to visit Peiping after you comp lete your lecture tour in Japan.

Peiping has been the center of Chinese culture in the last five hundred years.But behind its old walls you will find the rapid growth of research in Modern Physics in recent years.We are especially anxious to have foreign scholars like you to visit us at the present stage，for your very presence will give us confidence and inspiration in our investigation.

Please write us your approximate date of arrival，if you can find time to come.Then we shall communicate with you for further particularsafter you arrive at Tokyo.The Universitywill provide for your accommodation and extra travel expenses，and we shall accompany you to see the scenic beauties of the old capital.Our summer vacation will begin at the end of June butmost of uswill stay here during the rest of the summer.

With best regards，

We remain，

Yours sincerely，

Y.H.Woo

P.Y.Chou

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Studying in Cambridge：Jwu-ShiWang's Story

YIN Xiaodong1，Danian Hu2
（1.DePartment of Physics，CaPital Normal University，Beijing 100048，China；2.DePartment of History，The City College of The City University of New York）

Based on a group of newly discovered archivalmaterials at University of Cambridge and Tsinghua University，we have reconstructed in this essay some previously unknown experiences of Jwu-ShiWang during his studying in University of Cambridge.As a result，this essay enriches our know ledge ofWang’s life and study during the 1930s.Wang’s story not only reveals the contemporary exchanges and associations between Chinese physicists and their British colleagues such as Paul Dirac，Ralph Fow ler，John K.Roberts，etc.，but also represents the passionate support to younger physicists on the part of P.Y.Chou，S.C.Wang，Chi-Sun Yeh，and others.More importantly，we argue，J.S.Wang’s experience clearly demonstrates Chou’s farsighted design and persistent efforts to dispatch talented Chinese theoristsoverseas and let them study with Westernmasters in order to nurture future leaders of theoretical physics in China.History proves that the strategic p lanning of Chou and his colleagues indeed effectively advanced the Chinese development in theoretical physics and was of significant international impact.

Jwu ShiWang（Wang Zhuxi），P.Y.Chou，Cambridge University，P.A.M.Dirac，R.H.Fowler，S.C.Wang（Wang Shoujing），J.K.Roberts