1. Name of Database: Nagoya Multi-Directional Cosmic Ray Muon Telescope Data 2. Institution: Solar-Terrestrial Environment Laboratory, Nagoya University 3. Contents of Database: Hourly values of 17 directional cosmic ray muon intensities observed by Nagoya Multi-Directional Muon Telescope since 1970, and graphs of the intensities. 4. Examples of Database: Hourly muon intensities of Vertical telescope, grouped on 14-solar-rotation basis for the period of December 26, 1999 - January 6, 2001 (Solar Rotation Nos. 2272 - 2285). 5. Contact: Zenjiro Fujii Solar-Terrestrial Environment Laboratory, Nagoya University, Chikusa-ku, Nagoya 464-8601 Japan Tel.: +81-52-789-4320 Fax: +81-52-789-4313 E-mail: fujii[AT]stelab.nagoya-u.ac.jp 6. Public Offering of Database: