Which preposition to use with liebig

at Occurrences 1%

The chemists, with Berzelius and Liebig at their head, at first laughed this idea to scorn; but in 1843, a man then very young, who has since performed the unexampled feat of attaining to high eminence alike in Mathematics, Physics, and Physiology I speak of the illustrious Helmholtzreduced the matter to the test of experiment by a method alike elegant and conclusive.

Which preposition to use with  liebig