© Courtesy of the C. V. Starr East Asian Library, Columbia University.

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德國婦女練習試用避毒套:教導之情形 German women practicing using the gas masks: Teaching and learning.

Keywords: Germany, women, education, accident, chemistry,

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德國婦女練習試用避毒套:在課堂之演習 German women practicing using the gas masks: drill in the class

Keywords: Germany, women, education, accident, chemistry,

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德國婦女練習試用避毒套:出外步行 German women practicing using the gas masks: walking outside.

Keywords: Germany, women, education, accident, chemistry,

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德國婦女練習試用避毒套: 早操 German women practicing using the gas masks: Doing morning gymnastics

Keywords: sports, Germany, women, education, accident, chemistry,