| Bulletin of the National Museum of Nature and Science Series E (Physical Sciences & Engineering) | date of publication | 
    
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      | Bulletin of the National Museum of Nature and Science Series E (Physical Sciences & Engineering) Volume 31 | December 2008 | 
    
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      |  | Katsuhiro Sasaki and  Katsuyuki Kondo: | P.1 | 
    
      |  | The Japanese Clocks made by Sukezaemon Tsuda and Their Characteristics |  | 
    
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      |  | Makoto Nakamura and Yoshikazu Tanabe: | P.15 | 
    
      |  | Remarks on the Application of Fracture Mechanics on Steels |  | 
    
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      |  | Yoshikazu Tanabe, Akira Sugawara and Shuichi Iwata: | P.25 | 
    
      |  | Estimation of Fracture Toughness Independent of the Degree of Plastic Deformation |  | 
    
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      |  | Keiichi Saijo and Takashi Nakajima: | P.33 | 
    
      |  | History of the Development of Japanese Binoculars Manufacturing Technology |  |