407 A.2d 74 Margaret Brown Silar et al., Appellants v. Zoning Board of Adjustment of Spring Garden Township, Appellee. Commonwealth Court of Pennsylvania.Argued June 8, 1979 October 4, 1979. Zoning — Variance — Scope of appellate review — Findings of fact — Substantial evidence — Error of law — Abuse of discretion — Pennsylvania Municipalities […]