1 Appeals - Pleas in law - Only pleas in law supported by legal argument admissible (EC Treaty, Art. 168a; EC Statute of the Court of Justice, Art. 51; Rules of Procedure of the Court of Justice, Art. 112(1)(c)) 2 Appeals - Pleas in law - Inadequate reasoning - Principle of sound management - Sickness insurance - Sickness expenses - Supplementary sickness insurance scheme for officials posted outside the Community - Scope - Appeal dismissed (Staff Regulations, Art. 72 and Annex X, Art. 24)