晨睛，房中77°。下午睛。晚83°。
北京晨睛，房中770 。下午睛。晚830 。
上午蒋亦凡来。晚立夫来。宝望来。
晨六点起。八点半至院。九点开精简节约会议。杨克强报告编译局开会经过，发生职员因住宿薪给不满而攻击黄宗甄问题。蒋亦凡〔来)， 知现在卫生部，拟注释美国Reed 编Chinese Mα， tena Medica (<本草纲目})，借北大医院作办公室。
午后睡一小时。三点半借仲揆、三强、孟和谈科代大会仲揆代表报告之内容。
六点徒步回。晚膳后洗浴。张宝堃、姜立夫来谈。据立夫云，渠留台湾仅半载，即至广州岭南大学，数学所仅杨忠道一人尚在台湾，因沙眼未去美国。谓渠处尚有美金二千元可交与数学所。渠原定十号即走，余劝其留至廿号。孟和亦来谈。九点半立夫告别。
Blackett : p. 165 , Prof. Peter L. Kapitza writing in Soviet News in July , 1946;H the basic problem of nuclear physics is not made a matter for intemational c∞peration, if the physicists are split , and attemptωsolve the problem in every countryseparately, the investigation of these important natural phenomena will undoubtedly bedelayed. That will be all the more regrettable because the center of gravity of the problemis 悦目ainly not the military aspects of the new discovery, but the unprecedentedpower of the new source of energy , … will change the 脑pect of culture someday.寄英国Lilly 函John & Edward Bumpus 函