A series of powders is obtained progressively finer according to the time required to settle to the bottom of the vessel.
Naturalism is progressively obvious in its treatment, e.g.
"The evil principle," he says, "has in itself no personality, but attains a progressively universal personality in its kingdom; it has no individual personality, save only in individual creatures, who in an especial manner make themselves its organs; but among these is one creature in whom the principle is so hypostasized that he has become the centre and head of the kingdom of evil" (Dogmatics, p. 199).
His appointment was three times renewed, on each occasion with the expressions of the highest esteem on the part of the governing body, and his yearly salary was progressively raised from 180 to l000 florins.
The observer in passing northwards along the axis of that anticline finds himself getting into progressively higher strata as the fold sinks down.