我们保存的解放前的老《世知》,许多都出自一些老读者的捐赠,书页上常常会看到他们当时随手留下的标记。许多杂志的封面上还有购买时的记录,如“(民国)廿八年(1939年)五月二十六日晚购于商务印书馆侧”,“购于世界戏院门前”,“庚辰(1940年)正月三十晚自生活书店”,“零买于香? Many of the old “worldly understandings” we saved before the liberation were saved by the donations made by some old readers who often saw the mark they left behind at the time. Many magazines also have records on the cover of their purchases, such as “(Republic of China) twenty-eight years (1939) late on May 26 bought at the Commercial Press side,” “purchased in front of the theater in the world,” “G Chen (1940) the thirtieth night from the life bookstore ”," zero buy incense?