Which preposition to use with ameliorate

in Occurrences 2%

In this most desperate and forbidden region I was filled with pride to think that I belonged to a race whose sons, even in this inhospitable waste of waters, were struggling in the face of a thousand discouragements to introduce new forest trees and new agricultural products and ameliorate in some degree the conditions of life of the naked and miserable inhabitants.

by Occurrences 1%

The ungeneraled condition of the inhabitants he ameliorated by sending to them Munatius Flaccus.

through Occurrences 1%

As she learnt each successive arrival at Court, the unfortunate Princess trusted from day to day that her position would be ameliorated through the influence of some of her former friends; but until the Duc de Rohan reached the capital none of the great nobles appeared to remember her existence.

with Occurrences 1%

This terminated the dispute, and Captain Taylor's disposition was so ameliorated with punch, that he consented that the old pirate ship, and so many bales of cloth, should be given to Mackra, and then sank into the arms of intoxication.

within Occurrences 1%

Such are elements of the progress of the Jewess population in this part of the world, and there is no doubt their position has been greatly ameliorated within the last half century, or since the time of Ali Bey, who thus describes their wretched condition in his days.

Which preposition to use with  ameliorate