Do High-Velocity Clouds Really Fuel Galactic Star Formation?
  Tantalizing evidence has been presented supporting the suggestion that a large population of extragalactic gas clouds permeates the Local Group, a population which has been associated with the Galactic High-Velocity Clouds (HVCs). We comment on both the strengths and weaknesses of this suggestion, informally referred to as the Blitz/Spergel picture. Theoretical predictions for the spatial and kinematic distributions, metallicities, distances, and emission properties of Blitz/Spergel HVCs will be confronted with extant observational data. 
Brad K. Gibson (Swinburne), Mark L. Giroux (Colorado), John T. Stocke   (Colorado), J. Michael Shull (Colorado)