Explosive mixtures of marsh-gas and air may be fired by an unprotected light.
The ditch was choked, the gates were unprotected; the tumbled mass of irregular mud buildings which constituted the city clung tightly to the walls; there were no gun emplacements.
Even the waggon vaults over the nave, choir and transepts are of stone unprotected by lead or tiles.
Stavanger is the first port of call for northward-bound passenger steamers from Hull and Newcastle, and has regular services from all the Norwegian coast towns, from Hamburg, &c. A railway runs south along the wild and desolate coast of Jaederen, one of the few low and unprotected shores in Norway, the scene of many wrecks.
There are, however, during every winter from one to four severe blizzards, which inflict great damage upon unprotected flocks and herds.