Which preposition to use with amendable

by Occurrences 1%

But above all, it is created by law, is amendable by law, and is repealable by law, and, wedded as I am to no theory, but looking solely to the advancement of the public good, I shall be among the very first to urge its repeal if it be found not to subserve the purposes and objects for which it may be created.

Which preposition to use with  amendable