（三月八日）
下所记电话发明家贝尔博士逸事一则，亦天下无不可为之事之一证也。
It is seldom that an inventor sees so fully the complete fruition of his labors as in the case of Dr. Alexander……
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胡适留学日记二一、贝尔博士逸事
（三月八日）
It is seldom that an inventor sees so fully the complete fruition of his labors as in the case of Dr. Alexander……
序
卷一
卷二
卷三
卷四
卷五
卷六
卷七
卷八
卷九
卷十
卷十一
卷十二
卷十三
卷十四
卷十五
卷十六
卷十七