| Miscellaneous Reports of the Institute for Nature Study | date of publication | 
          
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            | Miscellaneous Reports of the Institute for Nature Study No.20 | March 1989 | 
          
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                |  | Nobuo Hisai: | P.1 | 
              
                |  | Notes on newly or rarely observed animal species in the Institute for Nature Study (2) |  | 
              
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                |  | Shinji Chiba and Naoki Sakamoto : | P.15 | 
              
                |  | A note on the birds of the Institute for Nature Study (supplement 1985-1988) |  | 
              
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                |  | Kan-ichi Sakagami, Atsushi Okuyama, Haruo Tanaka and Ryunosuke Hamada: | P.21 | 
              
                |  | Soil in the Institute for Nature Study -Status of soil microflora of a hydro-catena- |  | 
              
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                |  | Naoya Abe, Yasuo Uchida, Hitoshi Fujimura, Takashi Fujii and Norio Yanagisawa: | P.31 | 
              
                |  | Studies of the cranes in Izumi, Kagoshima, Japan 15: Population and its seasonal change of the cranes in Izumi in 1987-1988 |  | 
              
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                |  | Shinji Chiba and Naoya Abe: | P.41 | 
              
                |  | Studies of the cranes in Izumi, Kagoshima, Japan 16: The inquiry about the distribution of cranes in western and central Japan |  | 
              
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                |  | Touichi Sugawara and Shinji Chiba: | P.49 | 
              
                |  | Studies of the cranes in Izumi, Kagoshima, Japan 20: Meteorological survey in Izumi (2) Meteorological records of 1987 and 1988 |  | 
              
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