Which preposition to use with install

in Occurrences 4%

They were both enraptured at now being free to love each other in the romantic old mill, garlanded with ivy, pending the time when they would resolutely fling it to the ground to install in its place the great white meal stores and huge new mill-stones, which, with their conquering ambition, they often dreamt of.

Which preposition to use with  install