Overview
Thomas Herring
Massachusetts Institute of Technology, Cambridge, USA

Potential Theory and Static Gravity Field
of t he Earth
Christopher Jekeli
Ohio State University, Columbus, USA
Gravimetric Methods
Absolute Gravimeter: Instruments, Concepts and Implementation
Tim Niebauer
Migro-g Solutions, Inc., Erie, C olorado, USA

Superconducting Gravimetry
Jacques Hinderer
In stitut de Physique du Globe Strasbourg, France
David J. Crossley
S t. Louis University, Missouri, USA
Richard Warburton
G.W.R. Instru ments, Inc., San Diego, California, USA

Spacecraft Altimeter Meas urements
Don Chambers
University of Texas at Austin, USA

Ti me Variable Gravity
Earth Tides
Duncan Agnew
Scripps Institutio n of Oceanography, La Jolla, California, USA

Glacial Isostatic Ad justment
J.X. Mitrovica and K. Latchev
University of Toronto, Onta rio, Canada
M.E. Tamisiea
Harvard-Smithsonian Center for Astrophys ics, Cambridge, Massachusetts, USA

Time-Variable Gravity from Sat ellites
John Wahr
University of Colorado, Boulder, USA

Eart