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1 : HISTORY & PRELIMINARIES
     Questions     Refs.   
(1) Introduction
(2) Discovering Galaxies: Ours & Others
      (a) Early Aims
      (b) Before 1850 : Search & Discovery
      (c) 1850 - 1925 : The Great Debates
      (d) 1925 - 1950 : Expanding Horizons
      (e) 1950 - Present : Modern Developments
(3) Preliminaries
      (a) Basic Scales
      (b) Galaxies are Multicomponent Systems
      (c) Colors and Spectra
      (d) Useful Units
      (e) Magnitude Systems & Surface Brightness
      (f)  Mass to Light Ratios
      (g) Cosmology 101