Which preposition to use with iteration

of Occurrences 21%

But strangely enough, when, through sheer fatigue, his voice failed and his chin fell on his broad chest, a lad of fourteen or so, who had also had difficulty to keep awake, would jog Yagorsha's arm, repeating interrogatively the last phrase used, whereon the old Story-Teller would rouse himself and begin afresh, with an iteration of the previous statement.

in Occurrences 2%

By dint of assertion, innuendo, and iteration in a hundred papers, he can create an apparent public opinion, or public emotion, which may be directed towards the most dangerous ends.

for Occurrences 1%

The success of the French Republic, the peaceful order of the United States, perhaps some trouble within our own borders, will lead men with open minds to such a conception of a high and stable type of national life as will unite a sufficient number of them in a common project for pressing with systematic iteration for a complete set of organic changes.

Which preposition to use with  iteration