The Institutes of Natural Sciences including Physics, Chemistry, and Mathematics were Relocated to "Zaijun Laboratory" in Shanghai in 1946
In 1946, the Institutes of Physics, Chemistry, Psychology, Zoology, Botany, Mathematics, and Medicine were relocated back to the Institute of Natural Science building on Yueyang Road in Shanghai. In June, to commemorate Mr. Wen-Jiang Ding, the building was named "Zaijun Laboratory."
Source：Pursuing Excellence－History Website of Academia Sinica
