Applications for the striking off of an attorney from the roll, although sui generis and disciplinary in nature, constitute 'civil proceedings' within the meaning of section 20(1) and (4) of the Supreme Court Act 59 of 1959. The term 'civil proceedings' in section 20 has a wide meaning and encompasses more than 'civil suits' or 'civil actions'. From a procedural perspective, striking-off applications possess all the characteristics of civil proceedings. Consequently, leave to appeal is required in terms of section 20(4) of the Act before an appeal can be brought to the Supreme Court of Appeal. Leave to appeal is a jurisdictional prerequisite, not merely a technical obstacle. The Supreme Court of Appeal has no jurisdiction to hear an appeal in the absence of leave to appeal, and cannot grant such leave unless it was first sought and refused in the court below.