Letter

• An Ancient Solar Eclipse Record ``Tian-da-yi'' in the 10th Century BC

  Ci-Yuan Liu

  

  391-395

• Verification of a Similar Cycle Prediction for the Ascending and Peak Phases of Solar Cycle 23

  Jia-Long Wang, Jian-Cun Gong, Si-Qing Liu, Gui-Ming Le, Yan-Ben Han, Jing-Lan Sun

  

  396-398

Research Paper

• A Remark on Using Gravitational Lensing Probability as a Probe of the Central Regions of CDM Halos

  Yun Li

  

  399-407

• Comparisons of Infrared Colors and Emission-line Intensities between Two types of Seyfert~2 Galaxies

  Lin-Peng Cheng, Yong-Heng Zhao, Jian-Yan Wei

  

  408-418

• Information from the Kinematics of F and G Stars in the Solar Neighborhood

  Yu-Qin Chen, Gang Zhao, Jian-Rong Shi

  

  419-428

• A Statistical Model for Predicting the Average Abundance Patterns of Heavier Elements in Metal-Poor Stars

  Bo Zhang, Yan-Xia Zhang, Ji Li, Qiu-He Peng

  

  429-440

• On the Red Edge of the δ Scuti Instability Strip

  Yan Xu, Zhi-Ping Li, Li-Cai Deng, Da-Run Xiong

  

  441-448

• Optical Flash of GRB 990123: Constraints on the Physical Parameters of the Reverse Shock

  Yi-Zhong Fan, Zi-Gao Dai, Yong-Feng Huang, Tan Lu

  

  449-453

• The Radial Structure of Pulsar Radio Emission Regions

  Xin-Ji Wu, Zhan-Kui Huang, Xuan-Bin Xu

  

  454-462

• New Variable Stars Discovered as By-product of the Beijing Astronomical Observatory Supernova Survey

  Min-Zhi Kong, Yu-Lei Qiu, Chuan-Jian Shen, Jin-Song Deng, Bo Zhang, Jing-Yao Hu

  

  463-473

• Ghost Images in Schmidt CCD Photometry

  Bin Yang, Jin Zhu, Yu-Ying Song

  

  474-