1. INTRODUCTION  
2. SAMPLE SELECTION  
2.1. H3 Survey  
2.3. Calculations of Galactic Kinematics  
3. WIDE BINARY SEARCH  
4. PROPERTIES OF H3 WIDE BINARIES  
5. THE ABUNDANCE DEPENDENCE OF THE WIDE BINARY FRACTION  
6.1. Comparison with the Literature  
6.2. Origin of the Iron-Abundance Dependence  
7. CONCLUSIONS