The authorities upon the common law in South Africa are: the Dutch commentators upon the civil law, the statute law of Holland, the decisions of the Dutch courts, and, failing these, the corpus juris civilis itself.
The legal character of this transaction is summed up in a well-known passage in the Digest: - Interdictum de precariis merito introductum est, quia nulla eo nomine juris civilis actio esset, magis enim ad donationes et beneficii causam, quam ad negotii contracts spectat precarii conditio.
At first success attended Civilis and the Romans were driven out of the greater part of the Belgic province.
His most important works were Introductio in controversies juris civilis recentioris (Jena, 1771) and Geschichte der in Deutschland geltenden Rechte (Jena, 1780).
After the death of Vitellius, the inhabitants refused to join the Gallic revolt against Rome instigated by Julius Civilis and Julius Sabinus, and drove back Sabinus, who had invaded their territory.