Volume 25

December 2002
Bulletin of the National Science Museum Series E (Physical Sciences & Engineering) Volume 25

Masahiro Maejima

P.1
Four Telegraph devices Manufactured by Breguet Company Stocked at the Telecommunications Museum in Tokyo（リンクを新しいタブで開きます）(6.0 MB)

Shigekazu Yoneda・ Takayuki Nagamine・ Yasuji Oura・Mitsuru Ebihara

P.7
Precise Determination of the Mn-53/Mn-55 Isotopic Ratio in the ALH77250 Iron Meteorite（リンクを新しいタブで開きます）(4.8 MB)

Keiichi Saijo

P.17
Celestial Globes in the End ofEdo Era Owned by National Science Museum, Japan（リンクを新しいタブで開きます）(6.8 MB)

Katsuhiro Sasaki

P.23
A Japanese Hanging Clock with Singl Foriot Made by Risuke Katsu in the 20th Year of Meiji (1887)（リンクを新しいタブで開きます）(12.0 MB)

Masahiro Osako and Yuko Wakaari

P.35
Historical Earthquake Records by Duplex Pendulum Seismometers（リンクを新しいタブで開きます）(6.3 MB)