Over the past ten years, since the MERIT project began in 1980, great
changes have taken place and significant advances made in the area of
Earth Rotation and Coordinate Reference Frames. Symposium 105, held at
the 125th Anniversary Meeting of the International Association of
Geodesy, August 1989, was devoted to this subject. Major improvements in
techniques, such as VLBI and laser ranging, have been accompanied by
corresponding improvements in data-processing procedures and theories of
relevant phenomena. The papers included in this volume provide both a
comprehensive record of past discoveries and a sound basis for further
advances. Section headings are as follows: - Earth Rotation:
Determination and Prediction - Earth Rotation: Interpretation -
Reference Frames