With the rise of Mahommedanism occurred a sudden effervescence of the Arabs, who during some centuries threatened to impose not only their political authority but their civilization and new religion on the whole known world.
The oxidation of the foreign elements must be very slow, lest the effervescence due to the escape of carbonic oxide from the carbon of the metal throw the charge out of the doors and ports of the furnace, which itself must be shallow in order to hold the flame down close to the charge.
Here and there it was based upon a bastard Socialism, ~ in other places it was made a means of municipal ~ party warfare under the guidance of the local mafia, and in some districts it was simply popular effervescence against the local octrois on.
Chemistry, as well as mathematics, seems to have been the object of his early attention; and in the year 1690 he published a dissertation on effervescence and fermentation.
Every one expected and desired a speedy revolution that should put an end to a policy which alternated between overheated effervescence, abnormal activity and lethargy.