The inundated grasslands were prone to flooding.
Avoiding the artificial restraints of civilization, they were prone to fall back into animalism pure and simple.
The natives, already prone to the immorality which must infect a mixed population living under a hot sun, the immorality which still infects a place like Aden, were not improved by the addition of convicts.
The medieval mind was only too prone to look on morality as a highly technical art, quite as difficult as medicine or chancery law - a path where wayfaring men were certain to err, with no guide but their unsophisticated conscience.
With substances prone to discolorization, as, for example, certain amino compounds, the operation may be conducted in an atmosphere of carbon dioxide, or the water may be saturated with sulphuretted hydrogen.
