In two or three hours six arrobas of sulphur, on an average, may be obtained in this manner from twenty-four arrobas of sulphurous clay, and, poured into wooden chests, it is moulded into blocks of about four arrobas.

The stakes were not unfrequently for three and four hundred Indians in the early days of the colonies, when natives were so plenty that one could be bought for a cheese, or an arroba of vinegar, wine, or lard.

Per arroba Per 1000.